php replace a character in a string code example

Example 1: php replace return character

$string = str_replace("\n", "", $string);
$string = str_replace("\r", "", $string);

Example 2: str_replace php variable

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

Example 3: Replace String in PHP

phpCopy<?php
$mystring = "This is my string.";
echo("This is the string before replacement: ");
echo($mystring);
echo("\n");
$mynewstring = str_replace(" my ", " ", $mystring);
echo("Now, this is the string after replacement: ");
echo($mynewstring);
?>