3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php ob_start(); $time = microtime(1); $i = 0; while ($i++ < 10000) echo'aaaaaaa'.'aaaaaaa'.'aaaaaaa'.'aaaaaaa'; $end = microtime(1); ob_end_clean(); echo "period took ".$end-$time; ob_start(); $time = microtime(1); $i = 0; while ($i++ < 10000) echo'aaaaaaa','aaaaaaa','aaaaaaa','aaaaaaa'; $end = microtime(1); ob_end_clean(); echo "comma took ".$end-$time;
Output for 7.1.0
Warning: A non-numeric value encountered in /in/rfENa on line 9 -1351101210.0037 Warning: A non-numeric value encountered in /in/rfENa on line 19 -1351101210.0039
Output for 7.0.14
-1351101210.0039-1351101210.0044
Output for 7.0.12
-1351101210.004-1351101210.0046
Output for 7.0.6
-1462245487.4819-1462245487.4823
Output for 7.0.5
-1459614337.3423-1459614337.3428
Output for 7.0.4
-1457579889.7333-1457579889.7337
Output for 7.0.3
-1458272287.4472-1458272287.4475
Output for 7.0.2
-1458569168.011-1458569168.0113
Output for 7.0.1
-1458744195.1785-1458744195.1789
Output for 7.0.0
-1459009951.1566-1459009951.1571
Output for 5.6.28
-1351101210.0044-1351101210.0071
Output for 5.6.21
-1462141329.5548-1462141329.5567
Output for 5.6.20
-1460202022.4973-1460202022.4992
Output for 5.6.19
-1457319690.0366-1457319690.0381
Output for 5.6.18
-1457972321.3829-1457972321.3847
Output for 5.6.17
-1458374564.0814-1458374564.0831
Output for 5.6.16
-1459099117.5492-1459099117.5511
Output for 5.6.15
-1459188702.3889-1459188702.3902
Output for 5.6.14
-1459543383.7717-1459543383.7729
Output for 5.6.13
-1460681003.3761-1460681003.3779
Output for 5.6.12
-1461074670.3225-1461074670.3245
Output for 5.6.11
-1461359282.784-1461359282.7852
Output for 5.6.10
-1461538002.3158-1461538002.3176
Output for 5.6.9
-1461729561.0701-1461729561.0732
Output for 5.6.8
-1461930459.9936-1461930459.9952
Output for 5.6.7
-1464137218.0657-1464137218.0666
Output for 5.5.35
-1463883006.1693-1463883006.1703
Output for 5.5.34
-1460309896.9117-1460309896.9129
Output for 5.5.33
-1457446460.177-1457446460.1787
Output for 5.5.32
-1458158655.7788-1458158655.7804
Output for 5.5.31
-1458471228.5326-1458471228.5338
Output for 5.5.30
-1459455181.5078-1459455181.509
Output for 5.5.29
-1460818092.5189-1460818092.5211
Output for 5.5.28
-1461172380.0542-1461172380.0557
Output for 5.5.27
-1461267215.5416-1461267215.5433
Output for 5.5.26
-1461633727.6483-1461633727.6497
Output for 5.5.25
-1461827949.6759-1461827949.6777
Output for 5.5.24
-1464012764.2562-1464012764.2577
Output for 5.4.45
-1455813854.782-1455813854.7839
Output for 5.4.44
-1455813855.4315-1455813855.4335
Output for 5.4.43
-1455813856.4064-1455813856.4081
Output for 5.4.42
-1455813856.5938-1455813856.5956
Output for 5.4.41
-1455813857.5039-1455813857.5057
Output for 5.4.40
-1455813858.1344-1455813858.1355
Output for 5.4.39
-1455813858.7133-1455813858.7144
Output for 5.4.38
-1455813859.0359-1455813859.0375
Output for 5.4.37
-1455813859.6777-1455813859.6788
Output for 5.4.36
-1455813860.1556-1455813860.1572
Output for 5.4.35
-1455813860.7122-1455813860.7135
Output for 5.4.34
-1455813861.2429-1455813861.2446
Output for 5.4.32
-1455813862.2144-1455813862.2161
Output for 5.4.31
-1455813862.5867-1455813862.5885
Output for 5.4.30
-1455813863.0927-1455813863.0941
Output for 5.4.29
-1455813863.2739-1455813863.2758
Output for 5.4.28
-1455813863.6884-1455813863.69
Output for 5.4.27
-1455813864.0326-1455813864.0345
Output for 5.4.26
-1455813864.3703-1455813864.3714
Output for 5.4.25
-1455813864.9475-1455813864.949
Output for 5.4.24
-1455813865.3222-1455813865.324
Output for 5.4.23
-1455813865.4688-1455813865.4699
Output for 5.4.22
-1455813866.2683-1455813866.2699
Output for 5.4.21
-1455813866.45-1455813866.4517
Output for 5.4.20
-1455813866.8208-1455813866.8225
Output for 5.4.19
-1455813867.3701-1455813867.3714
Output for 5.4.18
-1455813867.7524-1455813867.7543
Output for 5.4.17
-1455813868.2562-1455813868.2579
Output for 5.4.16
-1455813868.6192-1455813868.6206
Output for 5.4.15
-1455813869.1258-1455813869.1275
Output for 5.4.14
-1455813869.313-1455813869.3156
Output for 5.4.13
-1455813869.6952-1455813869.6972
Output for 5.4.12
-1455813869.9864-1455813869.9876
Output for 5.4.11
-1455813870.487-1455813870.4887
Output for 5.4.10
-1455813870.9051-1455813870.9066
Output for 5.4.9
-1455813871.0863-1455813871.0879
Output for 5.4.8
-1455813871.5612-1455813871.563
Output for 5.4.7
-1455813871.872-1455813871.8731
Output for 5.4.6
-1455813872.0487-1455813872.0505
Output for 5.4.5
-1455813872.5906-1455813872.5938
Output for 5.4.4
-1455813872.9224-1455813872.9237
Output for 5.4.3
-1455813873.1003-1455813873.1023
Output for 5.4.2
-1455813873.5517-1455813873.5528
Output for 5.4.1
-1455813873.955-1455813873.9568
Output for 5.4.0
-1455813874.121-1455813874.1225
Output for 5.3.29
-1455813862.4057-1455813862.4076
Output for 5.3.28
-1455813865.895-1455813865.8972
Output for 5.3.27
-1455813868.083-1455813868.0848
Output for 5.3.26
-1455813868.7671-1455813868.7683
Output for 5.3.25
-1455813868.9495-1455813868.9515
Output for 5.3.24
-1455813869.4831-1455813869.4847
Output for 5.3.23
-1455813869.8463-1455813869.8475
Output for 5.3.22
-1455813870.1478-1455813870.1494
Output for 5.3.21
-1455813870.316-1455813870.3177
Output for 5.3.20
-1455813870.7305-1455813870.7325
Output for 5.3.19
-1455813871.236-1455813871.2373
Output for 5.3.18
-1455813871.3835-1455813871.3846
Output for 5.3.17
-1455813871.726-1455813871.7276
Output for 5.3.16
-1455813872.2284-1455813872.2304
Output for 5.3.15
-1455813872.3783-1455813872.3796
Output for 5.3.14
-1455813872.7731-1455813872.7749
Output for 5.3.13
-1455813873.2711-1455813873.2728
Output for 5.3.12
-1455813873.4114-1455813873.4126
Output for 5.3.11
-1455813873.7783-1455813873.7799
Output for 5.3.10
-1455813874.2936-1455813874.2951
Output for 5.3.9
-1455813874.4748-1455813874.4767
Output for 5.3.8
-1455813874.6568-1455813874.6585
Output for 5.3.7
-1455813874.8422-1455813874.8434
Output for 5.3.6
-1455813874.9952-1455813874.9965
Output for 5.3.5
-1455813875.1733-1455813875.1752
Output for 5.3.4
-1455813875.6101-1455813875.6113
Output for 5.3.3
-1455813875.9574-1455813875.9586
Output for 5.3.2
-1455813876.2533-1455813876.2545
Output for 5.3.1
-1455813876.7097-1455813876.7116
Output for 5.3.0
-1455813876.9968-1455813876.9989
Output for 5.2.17
-1455813875.3349-1455813875.337
Output for 5.2.16
-1455813875.4682-1455813875.4696
Output for 5.2.15
-1455813875.7427-1455813875.744
Output for 5.2.14
-1455813876.1115-1455813876.1135
Output for 5.2.13
-1455813876.3815-1455813876.3828
Output for 5.2.12
-1455813876.5394-1455813876.5416
Output for 5.2.11
-1455813876.8498-1455813876.8512
Output for 5.2.10
-1455813877.1554-1455813877.1571
Output for 5.2.9
-1455813877.3201-1455813877.3225
Output for 5.2.8
-1455813877.4632-1455813877.4662
Output for 5.2.7
-1455813877.6105-1455813877.6124
Output for 5.2.6
-1455813877.8628-1455813877.8643
Output for 5.2.5
-1455813878.1126-1455813878.1141
Output for 5.2.4
-1455813878.2619-1455813878.2638
Output for 5.2.3
-1455813878.4125-1455813878.4142
Output for 5.2.2
-1455813878.6278-1455813878.6301
Output for 5.2.1
-1455813879.1941-1455813879.1963
Output for 5.2.0
-1455813879.3519-1455813879.354
Output for 5.1.6
-1455813879.5069-1455813879.5092
Output for 5.1.5
-1455813879.8884-1455813879.8909
Output for 5.1.4
-1455813880.1873-1455813880.1894
Output for 5.1.3
-1455813880.3278-1455813880.3303
Output for 5.1.2
-1455813880.4828-1455813880.4849
Output for 5.1.1
-1455813880.8153-1455813880.8166
Output for 5.1.0
-1455813880.9481-1455813880.9495
Output for 5.0.5
-1455813881.2239-1455813881.2274
Output for 5.0.4
-1455813881.5617-1455813881.5641
Output for 5.0.3
-1455813881.8502-1455813881.8529
Output for 5.0.2
-1455813882.1243-1455813882.127
Output for 5.0.1
-1455813882.3798-1455813882.3818
Output for 5.0.0
-1455813882.538-1455813882.5403
Output for 4.4.9
-0.729001-0.73083
Output for 4.4.8
-0.977896-0.979668
Output for 4.4.7
-0.770269-0.774031
Output for 4.4.6
-0.910143-0.913884
Output for 4.4.5
-0.035594-0.03802
Output for 4.4.4
-0.660231-0.663488
Output for 4.4.3
-0.027574-0.031236
Output for 4.4.2
-0.68029-0.683628
Output for 4.4.1
-0.073967-0.076493
Output for 4.4.0
-0.383769-0.387078
Output for 4.3.11
-0.690748-0.693664
Output for 4.3.10
-0.986551-0.989937
Output for 4.3.9
-0.252699-0.255308
Output for 4.3.8
-0.66774-0.669793
Output for 4.3.7
-0.849776-0.85268
Output for 4.3.6
-0.974944-0.978104
Output for 4.3.5
-0.098653-0.10114
Output for 4.3.4
-0.221387-0.223065
Output for 4.3.3
-0.35032-0.353419
Output for 4.3.2
-0.477851-0.480848
Output for 4.3.1
-0.596664-0.598446
Output for 4.3.0
-0.759584-0.762638