[PHP]md5, sha1, crc32の中で最も長いハッシュ値を返す関数はどれ?

$md5Val   = md5( "a" );
$sha1Val  = sha1( "a" );
$crc32Val = crc32( "a" );
 
printf( "[md5]   %dbyte : %s\n", strlen( $md5Val ), $md5Val );
printf( "[sha1]  %dbyte : %s\n", strlen( $sha1Val ), $sha1Val );
printf( "[crc32] %dbyte : %s\n", strlen( $crc32Val ), $crc32Val );

[vagrant@localhost php]$ php test01.php
[md5]   32byte : 0cc175b9c0f1b6a831c399e269772661
[sha1]  40byte : 86f7e437faa5a7fce15d1ddcb9eaeaea377667b8
[crc32] 10byte : 3904355907

$start = microtime(true);
for( $i = 0; $i<1000000; $i++ ) {
    $md5Val   = md5( "a" );
}
echo microtime(true) - $start . "\n";
 
 
$start = microtime(true);
for( $i = 0; $i<1000000; $i++ ) {
    $sha1Val  = sha1( "a" );
}
echo microtime(true) - $start . "\n";
 
 
$start = microtime(true);
for( $i = 0; $i<1000000; $i++ ) {
    $crc32Val = crc32( "a" );
}
echo microtime(true) - $start . "\n";

[vagrant@localhost php]$ php test01.php
[md5]   0.72834014892578
[sha1]  0.95457792282104
[crc32] 0.33486604690552