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. Test str_ireplace online.
mixed str_ireplace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )
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(PHP 5, PHP 7)
str_ireplace — Case-insensitive version of str_replace()
This function returns a string or an array with all occurrences of
(ignoring case) replaced with the given
value. If you don't need fancy replacing rules, you should generally
use this function instead of
preg_replace() with the i modifier.
arrays, then str_ireplace() takes a value from each
array and uses them to search and replace on
replace has fewer
search, then an empty string is used for
the rest of replacement values. If
search is an
replace is a string, then this replacement
string is used for every value of
converse would not make sense, though.
are arrays, their elements are processed first to last.
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
values. An array may be used to designate multiple replacements.
The string or array being searched and replaced on, otherwise known as the haystack.
subject is an array, then the search and
replace is performed with every entry of
subject, and the return value is an array as
If passed, this will be set to the number of replacements performed.
Returns a string or an array of replacements.
Example #1 str_ireplace() example
$bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
echo $bodytag; // <body text=black>
Note: This function is binary-safe.
Because str_ireplace() replaces left to right, it might replace a previously inserted value when doing multiple replacements. Example #2 in the str_replace() documentation demonstrates how this may affect you in practice.
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