strncasecmp
(PHP 4 >= 4.0.2, PHP 5, PHP 7, PHP 8)
strncasecmp — Binary safe case-insensitive string comparison of the first n characters
Description
strncasecmp(string
$string1, string $string2, int $length): intThis function is similar to strcasecmp(), with the difference that you can specify the (upper limit of the) number of characters from each string to be used in the comparison.
Parameters
-
string1 -
The first string.
-
string2 -
The second string.
-
length -
The length of strings to be used in the comparison.
Return Values
Returns < 0 if string1 is less than
string2; > 0 if string1 is
greater than string2, and 0 if they are equal.
Examples
Example #1 strncasecmp() example
<?php
$var1 = 'Hello John';
$var2 = 'hello Doe';
if (strncasecmp($var1, $var2, 5) === 0) {
echo 'First 5 characters of $var1 and $var2 are equals in a case-insensitive string comparison';
}
?>
See Also
- strncmp() - Binary safe string comparison of the first n characters
- preg_match() - Perform a regular expression match
- substr_compare() - Binary safe comparison of two strings from an offset, up to length characters
- strcasecmp() - Binary safe case-insensitive string comparison
- stristr() - Case-insensitive strstr
- substr() - Return part of a string
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