How to Replace All Occurrences of a Substring in a String in PHP - Step by Step Examples

How to Replace All Occurrences of a Substring in a String in PHP ?

To replace all occurrences of a substring in a string in PHP, you can use the str_replace function.

In this example,

We create a string named $str.
We call the str_replace function with the substring to be replaced, the replacement string, and the input string as arguments.
The str_replace function returns a new string with all occurrences of the substring replaced.
Finally, we print the modified string.

<?php
$str = "Hello World Hello";
$newStr = str_replace("Hello", "Hi", $str);
echo $newStr;
?>

Hi World Hi

In this example,

We create a string named $str.
We call the str_replace function with the character to be replaced, the replacement character, and the input string as arguments.
The str_replace function returns a new string with all occurrences of the character replaced.
Finally, we print the modified string.

<?php
$str = "Hello World Hello";
$newStr = str_replace("o", "X", $str);
echo $newStr;
?>

HellX WXrld HellX

In this tutorial, we learned How to Replace All Occurrences of a Substring in a String in PHP language with well detailed examples.