mb_substr_count

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

mb_substr_count — Count the number of substring occurrences

function mb_substr_count(string $haystack, string $needle, ?string $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: Der Parameter encoding legt die Zeichenkodierung fest. Wird er nicht übergeben, so wird die interne Zeichenkodierung genutzt.

The number of times the needle substring occurs in the haystack string.

As of PHP 8.0.0, a ValueError is thrown if encoding is an invalid encoding. Prior to PHP 8.0.0, an E_WARNING was emitted instead.

Version	Beschreibung
8.0.0	`encoding` ist nun nullable (akzeptiert den `null`-Wert).
8.0.0	Now throws a ValueError if `encoding` is an invalid encoding. Previously, an `E_WARNING` was emitted and `false` was returned.

Beispiel #1 mb_substr_count() example

<?php
echo mb_substr_count("This is a test", "is"); // prints out 2
?>

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