简单版:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
<?php
header( "Content-Type: text/html;charset=utf-8" );
$str = '<div class = "ui-block-a" align= "center" >
<a href= "online-39.html" rel= "external nofollow" ><img class = "lazy" width= "131" height= "177" src= "//img.jbzj.com/file_images/game/201702/2017020716154162.jpg" />
<h3>2014年</h3></a>
</div>';
$imgpreg = "/<img (.*?) src=\"(.+?)\".*?>/" ;
preg_match( $imgpreg , $str , $img );
$mycount = count ( $img )-1;
$imgval = $iim [ $mycount ];
if (! empty ( $imgval )){
echo $imgval ;
} else {
echo 'no' ;
}
?>
|
详细版:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
<?php
/*PHP正则提取图片img标记中的任意属性*/
$str = '<center><img src="/uploads/images/2017020716154162.jpg" height="120" width="120"><br />PHP正则提取或更改图片img标记中的任意属性</center>' ;
//1、取整个图片代码
preg_match( '/<\s*img\s+[^>]*?src\s*=\s*(\'|\")(.*?)\\1[^>]*?\/?\s*>/i' , $str , $match );
echo $match [0];
//2、取width
preg_match( '/<img.+(width=\"?\d*\"?).+>/i' , $str , $match );
echo $match [1];
//3、取height
preg_match( '/<img.+(height=\"?\d*\"?).+>/i' , $str , $match );
echo $match [1];
//4、取src
preg_match( '/<img.+src=\"?(.+\.(jpg|gif|bmp|bnp|png))\"?.+>/i' , $str , $match );
echo $match [1];
/*PHP正则替换图片img标记中的任意属性*/
//1、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/2017020716154162.jpg")
print preg_replace( '/(<img.+src=\"?.+)(images\/)(.+\.(jpg|gif|bmp|bnp|png)\"?.+>)/i' ,"\${1}uc/images/\${3}", $str );
echo "<hr/>" ;
//2、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/2017020716154162.jpg",并省去宽和高
print preg_replace( '/(<img).+(src=\"?.+)images\/(.+\.(jpg|gif|bmp|bnp|png)\"?).+>/i' ,"\${1} \${2}uc/images/\${3}>", $str );
?>
|
以上这篇php正则提取html图片(img)src地址与任意属性的方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。