Multibyte String 函数
PHP 手册

mb_substr_count

(PHP 4 >= 4.3.0, PHP 5)

mb_substr_countCount the number of substring occurrences

说明

int mb_substr_count ( string $haystack , string $needle [, string $encoding ] )

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

参数

haystack

The string being checked.

needle

The string being found.

encoding

The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

返回值

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

范例

Example #1 mb_substr_count() example

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

参见


Multibyte String 函数
PHP 手册