What is the method to remove specified characters from a string in php

The method for PHP to remove specified characters from a string is: first use the strpos function to find the position where the specified character appears in the string; then use the substr_replace function to replace the specified character.

strpos() function finds the first occurrence of a string within another string (case sensitive).

substr_replace() function replaces part of a string with another string.

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Example:

$a = "abcababa";

$count=strpos($a,"ab");

$str=substr_replace($a,"",$count,2);

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