PHP5.3与5.5废弃与过期函数整理汇总_php技巧
很多PHP程序员都知道,从PHP5.3开始加入了一个新的报错级别DEPRECATED,即将废弃/过期。下面我们来一个个版本梳理一下。
在php5.3被放弃的函数有:
call_user_method() //使用 call_user_func() 替代 call_user_method_array() //使用 call_user_func_array() 替代 define_syslog_variables() dl() ereg() //使用 preg_match() 替代 ereg_replace() //使用 preg_replace() 替代 eregi() //使用 preg_match() 配合 'i' 修正符替代 eregi_replace() //使用 preg_replace() 配合 'i' 修正符替代 set_magic_quotes_runtime() //以及它的别名函数 magic_quotes_runtime() session_register() //使用 $_SESSION 超全部变量替代 session_unregister() //使用 $_SESSION 超全部变量替代 session_is_registered() //使用 $_SESSION 超全部变量替代 set_socket_blocking() //使用 stream_set_blocking() 替代 split() //使用 preg_split() 替代 spliti() //使用 preg_split() 配合 'i' 修正符替代 sql_regcase() mysql_db_query() //使用 mysql_select_db() 和 mysql_query() 替代 mysql_escape_string() //使用 mysql_real_escape_string() 替代 mysql_close(); // 将不支持全部关闭, 需要改为:mysql_close($link);
废弃以字符串传递区域设置名称. 使用 LC_* 系列常量替代.
mktime() 的 is_dst 参数. 使用新的时区处理函数替代.
PHP 5.4:
mcrypt_generic_end() mysql_list_dbs()
PHP 5.5:
mcrypt_cbc() mcrypt_cfb() mcrypt_ecb() mcrypt_ofb()
其中,PHP 5.3是废弃函数的开始,很多常用的以前的正则ereg全部替换preg,但是魔术引号。居然也从PHP 5.3开始弃用,PHP 5.4就移除了。这个算是PHP 5.3的一个大变动吧。
PHP 5.4开始新增了很多特性,这个大家可以网上搜索下,新增很多特殊写法。可能按照新写法,老程序员就看不太懂啦~~~
至于PHP 5.5,居然把MYSQL这个扩展去掉了,建议使用MYSQLI或者PDO!!用了5.5很多程序都会报错,提示mysql_connect即将过期!!会看到如下错误:
Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in E:testnew 6.php on line 6
PHP5相对于4的跨进最大的就是类的部分,而影响更多的就是废弃这些老习惯的东西吧。虽然版本一直在升级,但是终究市场上还是大量的5.1.6-5.2.17。5.3开始废弃很多特性,这就导致了很多程序也不敢直接上,5.5.直接秒杀了大量的开源产品!

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