How to implement string replacement in PHP

The content of this article is to share with you how to implement string replacement in PHP. It has certain reference value. Friends in need can refer to it

substr_replace(string,replacement ,start,length)

The first parameter is: the string to be replaced (required)

The second parameter is: the specification to be replaced The string after (required)

The third parameter is: the starting position of replacement (required)

Positive number - in Replace
at the specified position in the string. Negative numbers - Replace

at the specified position from the end of the string. 0 - Replace

optional)

Negative number-indicates the substring to be replaced The number of characters from the end of string to the end.

$str = '220282198801011234'; $new_str = substr_replace($str,'********',6,8); print_r($new_str);

Detailed explanation of several string replacement functions in php

In php replacement string The first string [no repeated replacement]

php: Commonly used string related functions

The above is the detailed content of How to implement string replacement in PHP. For more information, please follow other related articles on the PHP Chinese website!