A simple example of extracting any attribute in the image img tag with PHP_PHP Tutorial

Copy code The code is as follows:

/* PHP regular extraction of any attributes in the image img tag */

$str = '

PHP regular extraction or change of images Any attribute in the img tag ';

//1. Get the entire image code
preg_match('/]*?srcs*=s*('|")(.*?)\1[^> ;]*?/?s*>/i',$str,$match);
echo $match[0];

//2. Get the width attribute
preg_match('//i',$str,$match);
echo $match[1];

//3. Get the height attribute
preg_match('//i',$str,$match);
echo $match[1];

//4. Get src
preg_match('//i' ,$str,$match);
echo $match[1];

//1. Replace src="/uploads/images/20100516000.jpg" with src="/uploads/uc/images/20100516000.jpg")
print preg_replace('/()/i',"${1}uc/images/${3 }",$str);
echo "

---

";

//2. Replace src="/uploads/images/20100516000.jpg" with src="/uploads/uc/images/20100516000.jpg", and omit the width and height
print preg_replace(' /(/i',"${1} $ {2}uc/images/${3}>",$str);

?>

http://www.bkjia.com/PHPjc/621692.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/621692.htmlTechArticleCopy the code as follows: ?php /* PHP regular extraction of any attribute in the image img tag*/ $str = 'centerimg src="/uploads/images/20100516000.jpg" height="120" width="120"br /PHP regular...