replace all a to b in php file code example

Example 1: str_replace php variable

$var1 = 'hello.world';
$var2 = str_replace(".", "-", $var1);
echo $var2; // hello-world

Example 2: php replace string within string

$new_string = str_replace( $take_out, $put_in, $string);

Example 3: str_replace php

echo str_replace("worss","world","Hello worss in PHP!!");