This function returns a string or an array with all occurrences of search in subject (ignoring case) replaced with the given replace value. If you don't need fancy replacing rules, you should generally use this function instead of preg_replace() with the i modifier.
The value being searched for, otherwise known as the needle. An array may be used to designate multiple needles.
The replacement value that replaces found search values. An array may be used to designate multiple replacements.
The string or array being searched and replaced on, otherwise known as the haystack.
If subject is an array, then the search and replace is performed with every entry of subject, and the return value is an array as well.
If passed, this will be set to the number of replacements performed.
Returns a string or an array of replacements.
<?php
$bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
echo $bodytag; // <body text=black>
?>
strtr() -
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