php两个表内容如何相互调用
在这期好声音中,曾在湖南卫视《百变大咖秀》中担任声乐老师的魏雪漫将登场。[img]115[/img]此外,从下周开始,每位导师都会带着自己的梦想导师参与团队对战,因此,梦想导师人选就成为大家揣测的对象,传言的版本令人目不暇接。 [img]119[/img]在本周最后出场的四位学员中,歌手魏雪漫可谓是最大牌的学员,她于[img]165[/img]
这是数据表news里的body字段的。但是图片在pic表里。[img]165[/img]中间的数字是pic表的ID,图片地址存在对应的ID后的add字段里。
要正确显示这个新闻 php代码应该怎么写。
回复讨论(解决方案)
输出该文本时,将形如 [img] 115[/img] 的替换成形如 的
在 pic.php 中通过传入的 id 查找并输出图片数据
谢谢 能说的仔细点吗?我对正册不熟悉。
$s =<<< TXT在这期好声音中,曾在湖南卫视《百变大咖秀》中担任声乐老师的魏雪漫将登场。[img]115[/img]此外,从下周开始,每位导师都会带着自己的梦想导师参与团队对战,因此,梦想导师人选就成为大家揣测的对象,传言的版本令人目不暇接。 [img]119[/img]在本周最后出场的四位学员中,歌手魏雪漫可谓是最大牌的学员,她于[img]165[/img]TXT;echo preg_replace('/\[img\](\d+)\[\/img\]/', '<img src="/static/imghw/default1.png" data-src="pic.php?id=$1" class="lazy" alt="php两个表内容如何相互调用" >', $s);



pic.php?id=165读出来是img/110358tp58ocjpmn8paoob.jpg
但是 图片显示不出来
pic.php翻译的图片路径,是否正确?
pic.php?id=165读出来是img/110358tp58ocjpmn8paoob.jpg
但是 图片显示不出来
你要么302到真实图片地址,要么把图片读取出来输出,而不是就输出一个地址的字符串。
#1 中我说了“在 pic.php 中通过传入的 id 查找并 输出图片数据”
你认可了这个方案,所以才有了 #3 中的代码
那么你为什么只输出图片路径,而不输出图片数据呢?
如果你只打算输出图片路径的话,即将 [img]165[/img] 处理成
那就
echo preg_replace_callback('/\[img\](\d+)\[\/img\]/', function($r) { return '<img src="/static/imghw/default1.png" data-src="' . getpicid($r[1]) . '" class="lazy" . getpicid($r[1]) . '" alt="php两个表内容如何相互调用" >'; }, $s);
$s=<<< TXT在这期好声音中,曾在湖南卫视《百变大咖秀》中担任声乐老师的魏雪漫将登场。[img]115[/img]此外,从下周开始,每位导师都会带着自己的梦想导师参与团队对战,因此,梦想导师人选就成为大家揣测的对象,传言的版本令人目不暇接。 [img]119[/img]在本周最后出场的四位学员中,歌手魏雪漫可谓是最大牌的学员,她于[img]165[/img]TXT;$s=preg_replace('/\[img\](\d+)\[\/img\]/', function($r) { return '<img src="/static/imghw/default1.png" data-src="' . getpicid($r[1]) . '" class="lazy" . getpicid($r[1]) . '" alt="php两个表内容如何相互调用" >'; }, $s); echo $s;
这是我的pic.php的代码
错误提示:Parse error: syntax error, unexpected T_FUNCTION 指向$s=preg_replace('/\[img\](\d+)\[\/img\]/', function($r) {这一行
你的 php 版本是过少?
php 版本是5.3
对不起我晕了
图片在pic表里,只有id和图片地址两个字段。
$s=preg_replace('/\[img\](\d+)\[\/img\]/', function($r) 放pic.php里显然不合适。
但是放在 这里有不知道如何连接数据表或是pic.php文件
$s=<<< TXT在这期好声音中,曾在湖南卫视《百变大咖秀》中担任声乐老师的魏雪漫将登场。[img]115[/img]此外,从下周开始,每位导师都会带着自己的梦想导师参与团队对战,因此,梦想导师人选就成为大家揣测的对象,传言的版本令人目不暇接。 [img]119[/img]在本周最后出场的四位学员中,歌手魏雪漫可谓是最大牌的学员,她于[img]165[/img]TXT;$s=preg_replace_callback('/\[img\](\d+)\[\/img\]/', function($r) { return '<img src="/static/imghw/default1.png" data-src="' . getpicid($r[1]) . '" class="lazy" . getpicid($r[1]) . '" alt="php两个表内容如何相互调用" >'; }, $s); echo $s;function getpicid($id) { return $id.'.gif';}



这样在文本是没有问题但是
图片在pic表里,只有id和图片地址两个字段。
$s=preg_replace('/\[img\](\d+)\[\/img\]/', function($r) 放pic.php里显然不合适。
但是放在 这里有不知道如何连接数据表或是pic.php文件
你可在 getpicid 函数里查表获取 id 对应的图片地址
这样就填到正文里了
按原方案,查询不在输出正文时进行。而是在浏览器读取图片是进行的
你读到图片地址后 readifle('图片地址') 就是输出图片数据了
pic.php的代码
<?$result1=mysql_query("SELECT * FROM `pic` where id = '".$_GET['id']."'");while($row=mysql_fetch_array($result1)){?> <? $str=$row[attachment]; $str=preg_replace('/\[img\](.+?)\[\/img\]/', function($str) { return '<img src="/static/imghw/default1.png" data-src="' . getpicid($str[1]) . '" class="lazy" . getpicid($str[1]) . '" alt="php两个表内容如何相互调用" >'; }, $str); echo $str; ?><?}?>
show.php的代码
<?$result1=mysql_query("SELECT * FROM `news` where id = '".$_GET['id']."'");while($row=mysql_fetch_array($result1)){?><? $str=$row[message]; $str=preg_replace('/\[img\](\d+)\[\/img\]/', '<img src="/static/imghw/default1.png" data-src="pic.php?aid=$1" class="lazy" alt="php两个表内容如何相互调用" >', $str); echo $str; ?><?}?>
你可在 getpicid 函数里查表获取 id 对应的图片地址
这样就填到正文里了
按原方案,查询不在输出正文时进行。而是在浏览器读取图片是进行的
你读到图片地址后 readifle('图片地址') 就是输出图片数据了
原方案。pic.php里我用 echo readifle("img/359z0ycw7c3p6z39c73.jpg"); 前台还是不显示
文件存在吗?路径对吗?
文件和路径都对
文件存在吗?路径对吗?
出现错误提示:Fatal error: Call to undefined function readifle()
文件和路径都对
都对
readfile
readfile
Warning: readfile() [function.readfile]: open_basedir restriction in effect. File(img/359z0ycw7c3p6z39c73.jpg) is not within the allowed path(s)
readfile 要不要先声明一下或引用什么的
百度翻译:警告:readfile() [功能]:ReadFile。open_basedir限制效应。(IMG文件/ 359z0ycw7c3p6z39c73。JPG)不在允许的路径(的)
我改成这样echo readifle("http://localhost/img/359z0ycw7c3p6z39c73.jpg"); pic.php读出一堆乱码,应该是图片数据了。但是还是不显示图片 就一个红叉
都报错了,还能显示图片?
我改成这样echo readifle("http://localhost/img/359z0ycw7c3p6z39c73.jpg"); 不报错了。
pic.php读出一堆乱码,应该是图片数据了。
但是还是不显示图片 就一个红叉

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

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,

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.

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
