PHP -> Funkcie -> Funkcie pre prácu s reťazcami PHP -> substr_compare
Syntax
int substr_compare ( string $main_str , string $str , int $offset [, int $length [, bool $case_insensitivity ] ] )
Popis
Príkaz jazyka PHP
substr_compare() compares main_str from position offset with str up to length characters.
Returns < 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 length is equal or greater than length of main_str and length is set, substr_compare() prints warning and returns FALSE.
If case_insensitivity is TRUE, comparison is case insensitive.
Príklad
<?php
echo substr_compare("abcde",
"bc", 1, 2
);
// 0
echo substr_compare("abcde",
"bcg", 1, 2
);
// 0
echo substr_compare("abcde",
"BC", 1, 2, true
);
// 0
echo substr_compare("abcde",
"bc", 1, 3
);
// 1
echo substr_compare("abcde",
"cd", 1, 2
);
// -1
echo substr_compare("abcde",
"abc", 5, 1
);
// warning
?>