The substr_count() function counts the number of times a substring occurs in a string.
int substr_count ( string $haystack , string $needle [, int $offset = 0 [, int $length ]] )
substr_count() returns the number of times the needle substring occurs in the haystack string. Please note that needle is case sensitive.
| Parameter | Description |
|---|---|
| haystack | The string to search in |
| needle | The substring to search for |
| offset | The offset where to start counting. If the offset is negative, counting starts from the end of the string. |
| length | The maximum length after the specified offset to search for the substring. It outputs a warning if the offset plus the length is greater than the haystack length. A negative length counts from the end of haystack. |
This function returns an integer.