PHP uses regular expressions to replace tags_PHP tutorial

PHP uses regular expressions to replace tags

$str = 'How are you? It's okay. It's just so-so. [link url="http://www.chinanews.com/sh/2015/11-13/7621991.shtml"] Yichang Bridge exploded and collapsed, killing 14 The case was sentenced to a suspended death sentence for the defendant Zhang Genlin[/link] It’s not good at all. What should I do? areyouok[][link url="http://www.baidu.com"]Is this regular expression sure to work[/link]areyousui ';

$string = 'Hello, this is a connectionHow are you? How many days have we been here';

preg_match_all('/(.*?)/i',$string,$arr);

preg_match_all('/[link url="(.*?)".*?](.*?)[/link]/i',$str,$arr);

var_dump($arr);

if($arr){

foreach($arr[0] as $ke=>$va){

$str=str_replace($va,''.$arr [2][$ke].'',$str);

}

}

echo $str;

http://www.bkjia.com/PHPjc/1071280.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1071280.htmlTechArticlePHP uses regular expressions to replace tags $str = How are you? It’s ok. Just so-so [link url= http://www.chinanews.com/sh/2015/11-13/7621991.shtml] The verdict was announced in the case of Yichang Bridge explosion and collapse that killed 14 people...