PHP regular extraction of image address_PHP tutorial

Recently, when developing a program, I need to obtain the image address in the extracted content. I will briefly share the method here. Friends who need it can refer to it

I am obsessed with regular rules and keep trying new tricks. First of all, thanks to TNA's incomplete output RSS, and then again to SH's compulsive learning. Without TNA, I wouldn’t have looked at regular expressions, and I didn’t know there were such awesome expressions in the world. If SH wasn’t just saying that he didn’t understand, I wouldn’t have had the guts to figure it out and improve it. To achieve the same goal, regular expressions may not be unique, and there is nothing that cannot be done, it’s just that you didn’t expect it. You can put it this way, regularity is playing with setting rules. I love this kind of thing. Nothing excites me more and makes me feel awesome than setting rules to filter things. ​ Share some tips on using regular expressions to extract image addresses in the PHP environment: ​ The html code of the image URL specification is nothing more than ​ The code is as follows: ​ ​ 囧1 and 囧2 are not required. If you want to pass XHTML certification, 囧4, 囧5, and 囧6 are essential. 囧3 is the core content and of course it is indispensable. ​ Talking about regularity, the shortest match I wrote is ​ The code is as follows: (?

http://www.bkjia.com/PHPjc/747076.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/747076.htmlTechArticleRecently, when developing a program, I need to obtain the image address in the extracted content. Here is a simple method to share with friends who need it. You can refer to the following: I am obsessed with regular rules and keep trying new tricks. First...