PHP funkce substr_compare()

Dostupnost ve verzích: PHP 5.0

Binary safe comparison of 2 strings from an offset, up to length characters

Parametry

Parametr	Datový typ	Výchozí hodnota	Poznámka
$main_str	string		The main string being compared.
$str	string		The secondary string being compared.
$offset	int		The start position for the comparison. If negative, it starts counting from the end of the string.
$length	int	null,	The length of the comparison.
$case_insensitivity	bool	null	If case_insensitivity is true, comparison is case insensitive.

Návratové hodnoty

int

< 0 if main_str from position offset is less than str, > 0 if it is greater than str, and 0 if they are equal. If offset is equal to or greater than the length of main_str or length is set and is less than 1, substr_compare prints a warning and returns false.

Další zdroje

https://php.net/manual/en/function.substr-compare.php