What is the use of str_replace() PHP String function?

The PHP str_replace() function is used to search & replace some words in a strings.

Example

<?php
echo str_replace("Hello", "Hi", "Hello PHP!");
?>

In this example, "Hello" word will be replaced by "Hi" in the given string.

Run : http://ideone.com/AFs0DW

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