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run code in 300+ PHP versions simultaneously
<?php $string1 = str_repeat('x', 100); $string2 = str_repeat('y', 100); $string3 = str_repeat('z', 100); $mark = microtime(true); for($i = 0; $i < 2000; $i++) { ob_start(); for($j = 0; $j < 2000; $j++) echo $string1 . $string2 . $string3; ob_get_clean(); } echo microtime(true) - $mark;
Output for 7.2.0
0.58306694030762
Output for 7.1.7
0.46242499351501
Output for 7.1.6
0.44569802284241
Output for 7.1.5
0.47577595710754
Output for 7.1.0
0.50799489021301
Output for 7.0.20
0.44678211212158
Output for 7.0.6
0.47631287574768
Output for 7.0.5
0.4674129486084
Output for 7.0.4
0.48963618278503
Output for 7.0.3
0.5436999797821
Output for 7.0.2
0.46263408660889
Output for 7.0.1
0.4623110294342
Output for 7.0.0
0.48144507408142
Output for 5.6.30
1.7680649757385
Output for 5.6.28
-0.44911694526672
Output for 5.6.21
1.0683488845825
Output for 5.6.20
1.05788397789
Output for 5.6.19
1.0314381122589
Output for 5.6.18
1.0753619670868
Output for 5.6.17
1.0698192119598
Output for 5.6.16
1.0287899971008
Output for 5.6.15
1.1167030334473
Output for 5.6.14
1.0834140777588
Output for 5.6.13
1.0135560035706
Output for 5.6.12
1.0906698703766
Output for 5.6.11
1.0628790855408
Output for 5.6.10
1.0299270153046
Output for 5.6.9
1.0713419914246
Output for 5.6.8
1.0715250968933
Output for 5.6.7
1.0015680789948
Output for 5.5.35
1.0066921710968
Output for 5.5.34
1.0466389656067
Output for 5.5.33
1.0178389549255
Output for 5.5.32
1.0429530143738
Output for 5.5.31
1.0669441223145
Output for 5.5.30
1.0357019901276
Output for 5.5.29
1.0472631454468
Output for 5.5.28
1.0810010433197
Output for 5.5.27
1.1783530712128
Output for 5.5.26
1.1495449542999
Output for 5.5.25
1.0859770774841
Output for 5.5.24
1.0939140319824
Output for 5.4.45
1.0003859996796
Output for 5.4.44
1.0259101390839
Output for 5.4.43
1.027153968811
Output for 5.4.42
1.7792680263519
Output for 5.4.41
1.6820178031921
Output for 5.4.40
1.8328750133514
Output for 5.4.39
1.538421869278
Output for 5.4.38
1.5769259929657
Output for 5.4.37
2.1252000331879
Output for 5.4.36
2.2234139442444
Output for 5.4.35
1.244255065918
Output for 5.4.5 - 5.4.7, 5.4.9 - 5.4.11, 5.4.13 - 5.4.27, 5.4.29 - 5.4.31, 5.4.34

Process exited with code 137.
Output for 5.4.32
2.2483048439026
Output for 5.4.28
1.9593131542206
Output for 5.4.12
2.1030559539795
Output for 5.4.8
2.230208158493
Output for 5.4.4
1.1750140190125
Output for 5.4.3
1.1983361244202
Output for 5.4.2
1.1843070983887
preferences:
106.88 ms | 401 KiB | 90 Q