The example in this article describes the usage of preg_replace regular replacement in php. Share it with everyone for your reference, the details are as follows:
1.php’s preg_replace and str_replace are both default /g, replace them all
2. If you need to use regular expressions, you need to use preg_replace
<?php
$a = "abc defa
bcd ef";
$b= preg_replace("/\t|a/","",$a);
echo($b);
/*
输出：
bc def
bcd ef
*/
?>In addition, comparing replace in js, I feel that the syntax of php is not beautiful
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <script> var a="a b"; console.log(a.replace(/\t/g,"")); </script> </body> </html>
The running effect diagram is as follows:
![Usage analysis of preg_replace regular replacement in php [replace multiple values at one time]](https://img.php.cn//upload/image/663/682/389/1484876745827375.png "Usage analysis of preg_replace regular replacement in php [replace multiple values at one time]")
I hope this article will help The above will be helpful to everyone in PHP programming.
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