Analysis on regular expression replacement of preg_replace in php [Replace multiple values at a time], phppreg_replace

Analysis on regular expression replacement of preg_replace in php [Replace multiple values at a time], phppreg_replace

This example describes the usage of preg_replace Regular Expression replacement in php. We will share this with you for your reference. The details are as follows:

1. Both preg_replace and str_replace of php are/g by default, all replace

2. If you want to use a regular expression, use preg_replace.

<? Php $ a = "abc defabcd ef"; $ B = preg_replace ("/\ t | a/", "", $ a); echo ($ B ); /* output: bc defbcd ef */?>

In addition, comparing the replace in js, php syntax is not beautiful.

<! DOCTYPE html>  
Run the following command:
 
 
PS: here we will provide two very convenient Regular Expression tools for your reference:
 
JavaScript Regular Expression online testing tool:
Http://tools.jb51.net/regex/javascript
 
Regular Expression generation tool:
Http://tools.jb51.net/regex/create_reg