strcmp
(PHP 4, PHP 5, PHP 7, PHP 8)
strcmp — Binary safe string comparison
Description
Note that this comparison is case sensitive. For case-insensitive comparison,
see strcasecmp().
Note that this comparison is not locale aware. For locale aware comparison see
strcoll() or Collator::compare()
Parameters
string1-
The first string.
string2-
The second string.
Return Values
Returns a value less than 0 if string1
is less than string2; a value greater
than 0 if string1 is greater than
string2, and 0 if they
are equal.
No particular meaning can be reliably inferred from the value aside
from its sign.
Examples
Example #1 strcmp() example
<?php
$var1 = "Hello";
$var2 = "hello";
if (strcmp($var1, $var2) !== 0) {
echo '$var1 is not equal to $var2 in a case sensitive string comparison';
}
?>
strchr
String Functions