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PHP install gpg extension

Jul 29, 2016 am 09:14 AM
checking include usr

I took a look and found that basically native PHP has no gpg extension installed. So we installed the gpg extension for php ourselves:

1. First we download the source code package of gpg:

http://pecl.php.net/package/gnupg

I downloaded: gnupg-1.3.6. tgz

After decompressing, cd to the directory, phpize, and then ./configure.

2.

<code>andy@AndyMacBookPro:~/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>$ phpize
Configuring for:
PHP Api Version:         <span>20100412</span>
Zend Module Api No:      <span>20100525</span>
Zend Extension Api No:   <span>220100525</span>
andy@AndyMacBookPro:~/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>$ <span>.</span>/configure
checking for grep that handles long lines <span>and</span><span>-e</span><span>...</span> /usr/bin/grep
checking for egrep<span>...</span> /usr/bin/grep <span>-E</span>
checking for a sed that does <span>not</span> truncate output<span>...</span> /usr/bin/sed
checking for cc<span>...</span> cc
checking whether the C compiler works<span>...</span> yes
checking for C compiler default output file name<span>...</span> a<span>.</span>out
checking for suffix of executables<span>...</span>
checking whether we are cross compiling<span>...</span> no
checking for suffix of object files<span>...</span> o
checking whether we are using the GNU C compiler<span>...</span> yes
checking whether cc accepts <span>-g</span><span>...</span> yes
checking for cc option <span>to</span> accept ISO C89<span>...</span><span>none</span> needed
checking how <span>to</span> run the C preprocessor<span>...</span> cc <span>-E</span>
checking for icc<span>...</span> no
checking for suncc<span>...</span> no
checking whether cc understands <span>-c</span><span>and</span><span>-o</span> together<span>...</span> yes
checking for system library directory<span>...</span> lib
checking <span>if</span> compiler supports <span>-R</span><span>...</span> no
checking <span>if</span> compiler supports <span>-Wl</span>,<span>-rpath</span>,<span>...</span> yes
checking build system <span>type</span><span>...</span> i386<span>-apple</span><span>-darwin13</span><span>.4</span><span>.0</span>
checking host system <span>type</span><span>...</span> i386<span>-apple</span><span>-darwin13</span><span>.4</span><span>.0</span>
checking target system <span>type</span><span>...</span> i386<span>-apple</span><span>-darwin13</span><span>.4</span><span>.0</span>
checking for PHP prefix<span>...</span> /usr
checking for PHP <strong>include</strong>s<span>...</span><span>-I</span>/usr/<strong>include</strong>/php <span>-I</span>/usr/<strong>include</strong>/php/main <span>-I</span>/usr/<strong>include</strong>/php/TSRM <span>-I</span>/usr/<strong>include</strong>/php/Zend <span>-I</span>/usr/<strong>include</strong>/php/ext <span>-I</span>/usr/<strong>include</strong>/php/ext/<span>date</span>/lib
checking for PHP extension directory<span>...</span> /usr/lib/php/extensions/no<span>-debug</span><span>-non</span><span>-zts</span><span>-</span><span>20100525</span>
checking for PHP installed headers prefix<span>...</span> /usr/<strong>include</strong>/php
checking <span>if</span> debug is enabled<span>...</span> no
checking <span>if</span> zts is enabled<span>...</span> no
checking for re2c<span>...</span> no
configure: WARNING: You will need re2c <span>0.13</span><span>.4</span><span>or</span> later <span>if</span> you want <span>to</span> regenerate PHP parsers<span>.</span>
checking for gawk<span>...</span> no
checking for nawk<span>...</span> no
checking for awk<span>...</span> awk
checking <span>if</span> awk is broken<span>...</span> no
checking for gnupg support<span>...</span> yes, shared
checking for gnupg files <span>in</span> default path<span>...</span><span>not</span> found
configure: error: Please reinstall the gpgme distribution</code>
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can be seen to remind us to install gpgme. Ok, let’s install gpgme next.

  1. We install gpgme
<code>andy<span>@AndyMacBookPro</span>:~/Downloads/gnupg-<span>1.3</span><span>.6</span>$ brew install <span><span>gpgme</span>
==></span> Downloading <span>https</span>:<span>//</span>downloads.sf.net/project/machomebrew/Bottles/gpgme-<span>1.4</span><span>.3</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>######</span><span>100.0</span>%
=<span>=></span> Pouring gpgme-<span>1.4</span><span>.3</span>.mavericks.bottle.tar.gz
??  /usr/local/Cellar/gpgme/<span>1.4</span><span>.3</span>: <span>17</span> files, <span>1.2</span>M
andy<span>@AndyMacBookPro</span>:~/Downloads/gnupg-<span>1.3</span><span>.6</span>$ ./configure
checking <span>for</span> grep that handles long lines <span>and</span> -e... /usr/bin/grep
checking <span>for</span> egrep... /usr/bin/grep -E
checking <span>for</span> a sed that does <span>not</span> truncate output... /usr/bin/sed
checking <span>for</span> cc... cc
checking whether the C compiler works... <span>yes</span>
checking <span>for</span> C compiler <span>default</span> output file name... a.out
checking <span>for</span> suffix <span>of</span> executables...
checking whether we are cross compiling... <span>no</span>
checking <span>for</span> suffix <span>of</span> object files... o
checking whether we are using the GNU C compiler... <span>yes</span>
checking whether cc accepts -g... <span>yes</span>
checking <span>for</span> cc option to accept ISO C89... none needed
checking how to run the C preprocessor... cc -E
checking <span>for</span> icc... <span>no</span>
checking <span>for</span> suncc... <span>no</span>
checking whether cc understands -c <span>and</span> -o together... <span>yes</span>
checking <span>for</span> system library directory... lib
checking <span>if</span> compiler supports -R... <span>no</span>
checking <span>if</span> compiler supports -Wl,-rpath,... <span>yes</span>
checking build system type... i386-apple-darwin13<span>.4</span><span>.0</span>
checking host system type... i386-apple-darwin13<span>.4</span><span>.0</span>
checking target system type... i386-apple-darwin13<span>.4</span><span>.0</span>
checking <span>for</span> PHP prefix... /usr
checking <span>for</span> PHP <strong>include</strong>s... -I/usr/<strong>include</strong>/php -I/usr/<strong>include</strong>/php/main -I/usr/<strong>include</strong>/php/TSRM -I/usr/<strong>include</strong>/php/Zend -I/usr/<strong>include</strong>/php/ext -I/usr/<strong>include</strong>/php/ext/date/lib
checking <span>for</span> PHP extension directory... /usr/lib/php/extensions/<span>no</span>-debug-non-zts-<span>20100525</span>
checking <span>for</span> PHP installed headers prefix... /usr/<strong>include</strong>/php
checking <span>if</span> debug <span>is</span> enabled... <span>no</span>
checking <span>if</span> zts <span>is</span> enabled... <span>no</span>
checking <span>for</span> re2c... <span>no</span><span>configure</span>: <span>WARNING</span>: You will need re2c <span>0.13</span><span>.4</span><span>or</span> later <span>if</span> you want to regenerate PHP parsers.
checking <span>for</span> gawk... <span>no</span>
checking <span>for</span> nawk... <span>no</span>
checking <span>for</span> awk... awk
checking <span>if</span> awk <span>is</span> broken... <span>no</span>
checking <span>for</span> gnupg support... <span>yes</span>, shared
checking <span>for</span> gnupg files <span>in</span><span>default</span> path... found <span>in</span> /usr/local/<strong>include</strong>
checking <span>for</span> gpgme_check_version <span>in</span> -lgpgme... <span>yes</span>
checking <span>for</span> gpg... /usr/local/bin/gpg
checking <span>for</span> ld used <span>by</span> cc... /<strong>Application</strong>s/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
checking <span>if</span> the linker (/<strong>Application</strong>s/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) <span>is</span> GNU ld... <span>no</span>
checking <span>for</span> /<strong>Application</strong>s/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld option to reload object files... -r
checking <span>for</span> BSD-compatible nm... /usr/bin/nm
checking whether ln -s works... <span>yes</span>
checking how to recognize dependent libraries... pass_all
checking <span>for</span> ANSI C header files... <span>yes</span>
checking <span>for</span> sys/types.h... <span>yes</span>
checking <span>for</span> sys/stat.h... <span>yes</span>
checking <span>for</span> stdlib.h... <span>yes</span>
checking <span>for</span> string.h... <span>yes</span>
checking <span>for</span> memory.h... <span>yes</span>
checking <span>for</span> strings.h... <span>yes</span>
checking <span>for</span> inttypes.h... <span>yes</span>
checking <span>for</span> stdint.h... <span>yes</span>
checking <span>for</span> unistd.h... <span>yes</span>
checking dlfcn.h usability... <span>yes</span>
checking dlfcn.h presence... <span>yes</span>
checking <span>for</span> dlfcn.h... <span>yes</span>
checking the maximum length <span>of</span> command line arguments... <span>196608</span>
checking command to parse /usr/bin/nm output from cc object... ok
checking <span>for</span> objdir... .libs
checking <span>for</span> ar... ar
checking <span>for</span> ranlib... ranlib
checking <span>for</span> strip... strip
checking <span>for</span> dsymutil... dsymutil
checking <span>for</span> nmedit... nmedit
checking <span>for</span> -single_module linker flag... <span>yes</span>
checking <span>for</span> -exported_symbols_list linker flag... <span>yes</span>
checking <span>if</span> cc supports -fno-rtti -fno-exceptions... <span>yes</span>
checking <span>for</span> cc option to produce PIC... -fno-common
checking <span>if</span> cc PIC flag -fno-common works... <span>yes</span>
checking <span>if</span> cc static flag -static works... <span>no</span>
checking <span>if</span> cc supports -c -o file.o... <span>yes</span>
checking whether the cc linker (/<strong>Application</strong>s/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... <span>yes</span>
checking dynamic linker characteristics... darwin13<span>.4</span><span>.0</span> dyld
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries <span>is</span> possible... <span>yes</span>
checking <span>if</span> libtool supports shared libraries... <span>yes</span>
checking whether to build shared libraries... <span>yes</span>
checking whether to build static libraries... <span>no</span>creating libtool
appending configuration tag <span>"CXX"</span> to libtool
<span>configure</span>: creating ./config.status
config.<span>status</span>: creating config.h
andy<span>@AndyMacBookPro</span>:~/Downloads/gnupg-<span>1.3</span><span>.6</span>$</code>
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make:

<code>andy@AndyMacBookPro:~/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>$ make
/bin/sh /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/libtool <span>--</span>mode<span>=</span>compile cc  <span>-I</span><span>.</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-DPHP_ATOM_INC</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/<strong>include</strong> <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/main <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-I</span>/usr/<strong>include</strong>/php <span>-I</span>/usr/<strong>include</strong>/php/main <span>-I</span>/usr/<strong>include</strong>/php/TSRM <span>-I</span>/usr/<strong>include</strong>/php/Zend <span>-I</span>/usr/<strong>include</strong>/php/ext <span>-I</span>/usr/<strong>include</strong>/php/ext/<span>date</span>/lib <span>-I</span>/usr/<span>local</span>/<strong>include</strong>  <span>-DHAVE_CONFIG_H</span><span>-g</span><span>-O2</span><span>-c</span> /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/gnupg<span>.</span>c <span>-o</span> gnupg<span>.</span>lo
mkdir <span>.</span>libs
 cc <span>-I</span><span>.</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-DPHP_ATOM_INC</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/<strong>include</strong> <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/main <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-I</span>/usr/<strong>include</strong>/php <span>-I</span>/usr/<strong>include</strong>/php/main <span>-I</span>/usr/<strong>include</strong>/php/TSRM <span>-I</span>/usr/<strong>include</strong>/php/Zend <span>-I</span>/usr/<strong>include</strong>/php/ext <span>-I</span>/usr/<strong>include</strong>/php/ext/<span>date</span>/lib <span>-I</span>/usr/<span>local</span>/<strong>include</strong> <span>-DHAVE_CONFIG_H</span><span>-g</span><span>-O2</span><span>-c</span> /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/gnupg<span>.</span>c  <span>-fno</span><span>-common</span><span>-DPIC</span><span>-o</span><span>.</span>libs/gnupg<span>.</span>o
/bin/sh /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/libtool <span>--</span>mode<span>=</span>compile cc  <span>-I</span><span>.</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-DPHP_ATOM_INC</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/<strong>include</strong> <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/main <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-I</span>/usr/<strong>include</strong>/php <span>-I</span>/usr/<strong>include</strong>/php/main <span>-I</span>/usr/<strong>include</strong>/php/TSRM <span>-I</span>/usr/<strong>include</strong>/php/Zend <span>-I</span>/usr/<strong>include</strong>/php/ext <span>-I</span>/usr/<strong>include</strong>/php/ext/<span>date</span>/lib <span>-I</span>/usr/<span>local</span>/<strong>include</strong>  <span>-DHAVE_CONFIG_H</span><span>-g</span><span>-O2</span><span>-c</span> /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/gnupg_keylistiterator<span>.</span>c <span>-o</span> gnupg_keylistiterator<span>.</span>lo
 cc <span>-I</span><span>.</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-DPHP_ATOM_INC</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/<strong>include</strong> <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/main <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-I</span>/usr/<strong>include</strong>/php <span>-I</span>/usr/<strong>include</strong>/php/main <span>-I</span>/usr/<strong>include</strong>/php/TSRM <span>-I</span>/usr/<strong>include</strong>/php/Zend <span>-I</span>/usr/<strong>include</strong>/php/ext <span>-I</span>/usr/<strong>include</strong>/php/ext/<span>date</span>/lib <span>-I</span>/usr/<span>local</span>/<strong>include</strong> <span>-DHAVE_CONFIG_H</span><span>-g</span><span>-O2</span><span>-c</span> /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/gnupg_keylistiterator<span>.</span>c  <span>-fno</span><span>-common</span><span>-DPIC</span><span>-o</span><span>.</span>libs/gnupg_keylistiterator<span>.</span>o
/bin/sh /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/libtool <span>--</span>mode<span>=</span><span>link</span> cc <span>-DPHP_ATOM_INC</span><span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/<strong>include</strong> <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/main <span>-I</span>/Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span><span>-I</span>/usr/<strong>include</strong>/php <span>-I</span>/usr/<strong>include</strong>/php/main <span>-I</span>/usr/<strong>include</strong>/php/TSRM <span>-I</span>/usr/<strong>include</strong>/php/Zend <span>-I</span>/usr/<strong>include</strong>/php/ext <span>-I</span>/usr/<strong>include</strong>/php/ext/<span>date</span>/lib <span>-I</span>/usr/<span>local</span>/<strong>include</strong>  <span>-DHAVE_CONFIG_H</span><span>-g</span><span>-O2</span><span>-o</span> gnupg<span>.</span>la <span>-export</span><span>-dynamic</span><span>-avoid</span><span>-version</span><span>-prefer</span><span>-pic</span><span>-module</span><span>-rpath</span> /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/modules  gnupg<span>.</span>lo gnupg_keylistiterator<span>.</span>lo <span>-Wl</span>,<span>-rpath</span>,/usr/<span>local</span>/<strong>include</strong>/lib <span>-L</span>/usr/<span>local</span>/<strong>include</strong>/lib <span>-lgpgme</span>
cc ${wl}<span>-flat_namespace</span> ${wl}<span>-undefined</span> ${wl}suppress <span>-o</span><span>.</span>libs/gnupg<span>.</span>so <span>-bundle</span><span>.</span>libs/gnupg<span>.</span>o <span>.</span>libs/gnupg_keylistiterator<span>.</span>o  <span>-L</span>/usr/<span>local</span>/<strong>include</strong>/lib <span>-lgpgme</span><span>-Wl</span>,<span>-rpath</span><span>-Wl</span>,/usr/<span>local</span>/<strong>include</strong>/lib
ld: warning: directory <span>not</span> found for option <span>'-L/usr/local/<strong>include</strong>/lib'</span>
dsymutil <span>.</span>libs/gnupg<span>.</span>so <span>||</span> :
creating gnupg<span>.</span>la
(cd <span>.</span>libs <span>&&</span> rm <span>-f</span> gnupg<span>.</span>la <span>&&</span> ln <span>-s</span><span>..</span>/gnupg<span>.</span>la gnupg<span>.</span>la)
/bin/sh /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/libtool <span>--</span>mode<span>=</span>install cp <span>.</span>/gnupg<span>.</span>la /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/modules
cp <span>.</span><span>/</span><span>.</span>libs/gnupg<span>.</span>so /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/modules/gnupg<span>.</span>so
cp <span>.</span><span>/</span><span>.</span>libs/gnupg<span>.</span>lai /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/modules/gnupg<span>.</span>la
<span>----------------------------------------------------------------------</span>
Libraries have been installed <span>in</span>:
   /Users/andy/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>/modules

<span>If</span> you ever happen <span>to</span> want <span>to</span><span>link</span> against installed libraries
<span>in</span> a given directory, LIBDIR, you must either use libtool, <span>and</span>
specify the <span>full</span> pathname of the library, <span>or</span> use the <span>`-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `</span>DYLD_LIBRARY_PATH<span>' environment variable
     during execution

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------

Build complete.
Don'</span>t forget <span>to</span> run <span>'make test'</span><span>.</span>andy@AndyMacBookPro:~/Downloads/gnupg<span>-</span><span>1.3</span><span>.6</span>$</code>
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4. We can see that the so file has been generated, we move the so file to the extension directory of php:

<code>andy<span>@AndyMacBookPro</span><span>:/usr/lib/php/extensions/no-debug-non-zts-</span><span>20100525</span><span>$ </span>sudo cp /<span>Users</span>/andy/<span>Downloads</span>/gnupg-<span>1.3</span>.<span>6</span>/modules/gnupg.so ./</code>
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After that we add this to php.ini Extension:

extension = gnupg.so

After that we can use gunpg extension in php:

<code><span><span><?php</span><span>$url</span> = <span>'http://192.168.2.85/2015/09/20/加密文件.csv'</span>;
<span>$data</span> = file_get_contents(<span>$url</span>);
<span>$data</span> = mb_convert_encoding(<span>$data</span>, <span>'UTF-8'</span>, <span>'GBK'</span>);

<span>$encrypted_text</span> = <span>$data</span>;
<span>$res</span> = gnupg_init();
gnupg_adddecryptkey(<span>$res</span>,<span>"ABCFA237F71C57CA2042439F93704A63BCC8A2F"</span>,<span>"12345678"</span>);
<span>$plain</span> = gnupg_decrypt(<span>$res</span>,<span>$encrypted_text</span>);
var_dump(<span>$plain</span>);<span>exit</span>;</span></code>
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Thank you very much for this article:

http://devzone.zend.com/1278/using-gnupg- with-php/

The above introduces the installation of gpg extension in PHP, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

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Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

How does session hijacking work and how can you mitigate it in PHP? How does session hijacking work and how can you mitigate it in PHP? Apr 06, 2025 am 12:02 AM

Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.

What are Enumerations (Enums) in PHP 8.1? What are Enumerations (Enums) in PHP 8.1? Apr 03, 2025 am 12:05 AM

The enumeration function in PHP8.1 enhances the clarity and type safety of the code by defining named constants. 1) Enumerations can be integers, strings or objects, improving code readability and type safety. 2) Enumeration is based on class and supports object-oriented features such as traversal and reflection. 3) Enumeration can be used for comparison and assignment to ensure type safety. 4) Enumeration supports adding methods to implement complex logic. 5) Strict type checking and error handling can avoid common errors. 6) Enumeration reduces magic value and improves maintainability, but pay attention to performance optimization.

Describe the SOLID principles and how they apply to PHP development. Describe the SOLID principles and how they apply to PHP development. Apr 03, 2025 am 12:04 AM

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What is REST API design principles? What is REST API design principles? Apr 04, 2025 am 12:01 AM

RESTAPI design principles include resource definition, URI design, HTTP method usage, status code usage, version control, and HATEOAS. 1. Resources should be represented by nouns and maintained at a hierarchy. 2. HTTP methods should conform to their semantics, such as GET is used to obtain resources. 3. The status code should be used correctly, such as 404 means that the resource does not exist. 4. Version control can be implemented through URI or header. 5. HATEOAS boots client operations through links in response.

How do you handle exceptions effectively in PHP (try, catch, finally, throw)? How do you handle exceptions effectively in PHP (try, catch, finally, throw)? Apr 05, 2025 am 12:03 AM

In PHP, exception handling is achieved through the try, catch, finally, and throw keywords. 1) The try block surrounds the code that may throw exceptions; 2) The catch block handles exceptions; 3) Finally block ensures that the code is always executed; 4) throw is used to manually throw exceptions. These mechanisms help improve the robustness and maintainability of your code.

What are anonymous classes in PHP and when might you use them? What are anonymous classes in PHP and when might you use them? Apr 04, 2025 am 12:02 AM

The main function of anonymous classes in PHP is to create one-time objects. 1. Anonymous classes allow classes without names to be directly defined in the code, which is suitable for temporary requirements. 2. They can inherit classes or implement interfaces to increase flexibility. 3. Pay attention to performance and code readability when using it, and avoid repeatedly defining the same anonymous classes.

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