3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "Hello"; $b = "world"; $matching = array_unique(array_intersect(str_split(strtolower($a)), str_split(strtolower($b)))); $t = microtime(true); if($matching) echo "\nmatching characters: " . implode(", ", $matching); echo "\n" . (microtime(true)-$t)*100; $s = microtime(true); if(count($matching)>0) echo "\nmatching characters: " . implode(", ", $matching); echo "\n" . (microtime(true)-$s)*100;
Output for 7.1.10, 7.2.8, 7.2.14, 7.3.12
matching characters: l, o 0.002598762512207 matching characters: l, o 0.00040531158447266
Output for 7.3.2, 7.3.11
matching characters: l, o 0.0020027160644531 matching characters: l, o 0.00019073486328125
Output for 7.3.10
matching characters: l, o 0.0020980834960938 matching characters: l, o 0.00030994415283203
Output for 7.3.9
matching characters: l, o 0.0020980834960938 matching characters: l, o 0.00019073486328125
Output for 7.3.8
matching characters: l, o 0.0024795532226562 matching characters: l, o 0.00030994415283203
Output for 7.3.7
matching characters: l, o 0.0027179718017578 matching characters: l, o 0.00040531158447266
Output for 7.3.6
matching characters: l, o 0.0036954879760742 matching characters: l, o 0.0003814697265625
Output for 7.3.5
matching characters: l, o 0.002288818359375 matching characters: l, o 0.00019073486328125
Output for 7.3.4
matching characters: l, o 0.0027179718017578 matching characters: l, o 0.00021457672119141
Output for 7.2.13, 7.3.3
matching characters: l, o 0.0026941299438477 matching characters: l, o 0.00030994415283203
Output for 7.3.1
matching characters: l, o 0.0027894973754883 matching characters: l, o 0.00019073486328125
Output for 7.3.0
matching characters: l, o 0.0023841857910156 matching characters: l, o 0.00030994415283203
Output for 7.2.24
matching characters: l, o 0.0023841857910156 matching characters: l, o 0.00019073486328125
Output for 7.2.23
matching characters: l, o 0.0031948089599609 matching characters: l, o 0.00030994415283203
Output for 7.2.5, 7.2.22
matching characters: l, o 0.0025033950805664 matching characters: l, o 0.00019073486328125
Output for 7.2.21
matching characters: l, o 0.0026941299438477 matching characters: l, o 0.00019073486328125
Output for 7.2.17, 7.2.20
matching characters: l, o 0.002598762512207 matching characters: l, o 0.00021457672119141
Output for 7.2.19
matching characters: l, o 0.0032901763916016 matching characters: l, o 0.00040531158447266
Output for 7.2.18
matching characters: l, o 0.003504753112793 matching characters: l, o 0.0003814697265625
Output for 7.2.16
matching characters: l, o 0.0036001205444336 matching characters: l, o 0.0010967254638672
Output for 7.2.15
matching characters: l, o 0.002288818359375 matching characters: l, o 0.00021457672119141
Output for 7.2.2, 7.2.12
matching characters: l, o 0.0027894973754883 matching characters: l, o 0.00021457672119141
Output for 7.2.3, 7.2.11
matching characters: l, o 0.0025033950805664 matching characters: l, o 0.00030994415283203
Output for 7.2.10
matching characters: l, o 0.0028133392333984 matching characters: l, o 0.00069141387939453
Output for 7.2.9
matching characters: l, o 0.0036001205444336 matching characters: l, o 0.00028610229492188
Output for 7.2.7
matching characters: l, o 0.0027894973754883 matching characters: l, o 0.00028610229492188
Output for 7.2.6
matching characters: l, o 0.0033140182495117 matching characters: l, o 0.00040531158447266
Output for 7.2.4
matching characters: l, o 0.0044107437133789 matching characters: l, o 0.00028610229492188
Output for 7.2.1
matching characters: l, o 0.0024080276489258 matching characters: l, o 0.00030994415283203
Output for 7.2.0
matching characters: l, o 0.0034093856811523 matching characters: l, o 0.00050067901611328
Output for 7.1.33
matching characters: l, o 0.0023126602172852 matching characters: l, o 0.00040531158447266
Output for 7.1.32
matching characters: l, o 0.0021934509277344 matching characters: l, o 0.00030994415283203
Output for 7.1.31
matching characters: l, o 0.0017166137695312 matching characters: l, o 0.00019073486328125
Output for 7.1.30
matching characters: l, o 0.0018835067749023 matching characters: l, o 0.00030994415283203
Output for 7.1.29
matching characters: l, o 0.0021934509277344 matching characters: l, o 0.00050067901611328
Output for 7.1.28
matching characters: l, o 0.0025033950805664 matching characters: l, o 0.00028610229492188
Output for 7.1.27
matching characters: l, o 0.0039815902709961 matching characters: l, o 0.00021457672119141
Output for 7.1.26
matching characters: l, o 0.002288818359375 matching characters: l, o 0.00040531158447266
Output for 7.1.25
matching characters: l, o 0.0021934509277344 matching characters: l, o 0.00021457672119141
Output for 7.1.20
matching characters: l, o 0.010013580322266 matching characters: l, o 0.0025033950805664
Output for 7.1.19
matching characters: l, o 0.011205673217773 matching characters: l, o 0.0058889389038086
Output for 7.1.18
matching characters: l, o 0.013589859008789 matching characters: l, o 0.0029087066650391
Output for 7.1.17
matching characters: l, o 0.011801719665527 matching characters: l, o 0.0034093856811523
Output for 7.1.16
matching characters: l, o 0.0068187713623047 matching characters: l, o 0.00050067901611328
Output for 7.1.15
matching characters: l, o 0.0074863433837891 matching characters: l, o 0.0020027160644531
Output for 7.1.14
matching characters: l, o 0.0047922134399414 matching characters: l, o 0.00059604644775391
Output for 7.1.13
matching characters: l, o 0.0030994415283203 matching characters: l, o 0.00040531158447266
Output for 7.1.12
matching characters: l, o 0.011897087097168 matching characters: l, o 0.0076055526733398
Output for 7.1.11
matching characters: l, o 0.0098943710327148 matching characters: l, o 0.0051021575927734
Output for 7.1.9
matching characters: l, o 1.1672973632812 matching characters: l, o 0.00059604644775391
Output for 7.1.8
matching characters: l, o 0.0098943710327148 matching characters: l, o 0.0026941299438477
Output for 7.1.7
matching characters: l, o 0.0081062316894531 matching characters: l, o 0.0016927719116211
Output for 7.1.6
matching characters: l, o 0.0081062316894531 matching characters: l, o 0.0018835067749023
Output for 7.1.5
matching characters: l, o 0.78279972076416 matching characters: l, o 0.00081062316894531
Output for 7.1.4
matching characters: l, o 0.0084877014160156 matching characters: l, o 0.0018119812011719
Output for 7.1.3
matching characters: l, o 0.0080108642578125 matching characters: l, o 0.0018119812011719
Output for 7.1.2
matching characters: l, o 0.0032186508178711 matching characters: l, o 0.00040531158447266
Output for 7.1.1
matching characters: l, o 0.006103515625 matching characters: l, o 0.00050067901611328
Output for 7.1.0
matching characters: l, o 0.0029087066650391 matching characters: l, o 0.00071525573730469
preferences:
70.83 ms | 489 KiB | 5 Q