Collator::compare
collator_compare
(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
Collator::compare -- collator_compare — Compare two Unicode strings
说明
面向对象风格
public
Collator::compare (
string
$str1
,
string $str2
) :
int
过程化风格
Compare two Unicode strings according to collation rules.
返回值
Return comparison result:
-
1 if
str1
is greater thanstr2
; -
0 if
str1
is equal tostr2
; -
-1 if
str1
is less thanstr2
.
FALSE
is returned.
范例
Example #1 collator_compare()example
<?php
$s1 = 'Hello';
$s2 = 'hello';
$coll = collator_create( 'en_US' );
$res = collator_compare( $coll, $s1, $s2 );
if ($res === false) {
echo collator_get_error_message( $coll );
} else if( $res > 0 ) {
echo "s1 is greater than s2\n";
} else if( $res < 0 ) {
echo "s1 is less than s2\n";
} else {
echo "s1 is equal to s2\n";
}
?>
以上例程会输出:
s1 is greater than s2