(PHP 4 >= 4.3.0, PHP 5, PHP 7)
mb_substr_count — Count the number of substring occurrences
mb_substr_count ( string $haystack , string $needle [, string|null $encoding = null ] ) : int
Counts the number of times the needle substring occurs in the haystack string.
haystack
The string being checked.
needle
The string being found.
encoding
The encoding parameter is the character encoding. If it is omitted or null, the internal character encoding value will be used.
The number of times the needle substring occurs in the haystack string.
| Version | Description |
|---|---|
| 8.0.0 | encoding is nullable now. |
Example #1 mb_substr_count() example
<?php
echo mb_substr_count("This is a test", "is"); // prints out 2
?>
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https://www.php.net/manual/en/function.mb-substr-count.php