3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isCorrect($string) { if (strlen($string) % 2) { for( $i = 0; $i < strlen($string); $i++) { $string; } return true; } return false; } $string = '({{}})'; //var_dump(isCorrect($string)); var_dump(strlen($string) % 2); //assert(isCorrect('') === true); //assert(isCorrect('()') === true); //assert(isCorrect('{()}') === true); //assert(isCorrect('{()}{}') === true); //assert(isCorrect('(())') === true); //assert(isCorrect('{({({({()})})})}') === true); //assert(isCorrect('{(})') === false);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.70.0090.01218.30
8.3.60.0070.00718.18
8.3.50.0120.00721.04
8.3.40.0110.00718.71
8.3.30.0070.00719.04
8.3.20.0040.00419.98
8.3.10.0050.00223.66
8.3.00.0050.00319.13
8.2.180.0110.00416.32
8.2.170.0090.00622.96
8.2.160.0130.00020.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0050.00322.14
8.2.110.0030.00619.38
8.2.100.0110.00017.91
8.2.90.0030.00619.28
8.2.80.0040.00417.97
8.2.70.0040.00417.59
8.2.60.0000.00818.04
8.2.50.0030.00618.07
8.2.40.0000.01020.07
8.2.30.0040.00417.96
8.2.20.0000.00717.55
8.2.10.0040.00418.11
8.2.00.0000.00817.66
8.1.280.0100.00325.92
8.1.270.0060.00323.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00922.14
8.1.230.0070.00418.96
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0040.00417.23
8.1.180.0030.00718.10
8.1.170.0030.00618.54
8.1.160.0000.00721.99
8.1.150.0000.00818.82
8.1.140.0060.00317.38
8.1.130.0030.00317.80
8.1.120.0000.00717.43
8.1.110.0000.00717.29
8.1.100.0000.00717.27
8.1.90.0000.00717.40
8.1.80.0030.00517.38
8.1.70.0050.00317.34
8.1.60.0090.00017.49
8.1.50.0040.00417.45
8.1.40.0020.00517.41
8.1.30.0050.00317.55
8.1.20.0000.00717.51
8.1.10.0040.00417.52
8.1.00.0040.00417.48
8.0.300.0060.00320.16
8.0.290.0050.00216.75
8.0.280.0030.00318.44
8.0.270.0060.00017.23
8.0.260.0030.00317.16
8.0.250.0070.00016.96
8.0.240.0070.00016.97
8.0.230.0060.00316.96
8.0.220.0020.00516.78
8.0.210.0030.00316.79
8.0.200.0030.00316.92
8.0.190.0000.00716.88
8.0.180.0000.00716.80
8.0.170.0080.00016.79
8.0.160.0000.00816.82
8.0.150.0030.00516.72
8.0.140.0080.00016.82
8.0.130.0050.00013.33
8.0.120.0040.00416.75
8.0.110.0050.00216.79
8.0.100.0080.00016.68
8.0.90.0030.00316.88
8.0.80.0030.01316.87
8.0.70.0040.00416.77
8.0.60.0040.00416.76
8.0.50.0000.00716.66
8.0.30.0100.01017.13
8.0.20.0130.00917.40
8.0.10.0040.00416.99
8.0.00.0050.01216.75
7.4.330.0020.00215.02
7.4.320.0030.00316.48
7.4.300.0060.00016.42
7.4.290.0050.00216.43
7.4.280.0030.00616.42
7.4.270.0070.00016.56
7.4.260.0000.00716.31
7.4.250.0030.00316.48
7.4.240.0020.00616.47
7.4.230.0070.00016.23
7.4.220.0100.01016.50
7.4.210.0070.00716.63
7.4.200.0030.00316.54
7.4.160.0110.00916.48
7.4.150.0030.01317.40
7.4.140.0100.00817.86
7.4.130.0070.01016.53
7.4.120.0060.01416.58
7.4.110.0070.01416.39
7.4.100.0100.00916.39
7.4.90.0000.01716.37
7.4.80.0100.00719.39
7.4.70.0040.01816.38
7.4.60.0070.01416.47
7.4.50.0030.00616.34
7.4.40.0100.00616.27
7.4.30.0030.01416.54
7.4.00.0040.00414.98
7.3.330.0050.00013.25
7.3.320.0050.00013.30
7.3.310.0000.00616.14
7.3.300.0000.00716.29
7.3.290.0050.00916.29
7.3.280.0080.00916.31
7.3.270.0060.01217.40
7.3.260.0140.00416.36
7.3.250.0150.00216.56
7.3.240.0100.00616.50
7.3.230.0160.00616.39
7.3.210.0090.00616.46
7.3.200.0080.00819.39
7.3.190.0070.01016.38
7.3.180.0100.01016.35
7.3.170.0040.01616.38
7.3.160.0040.01216.38
7.3.120.0040.01117.15
7.3.110.0000.01317.15
7.3.100.0000.01417.15
7.3.90.0070.00317.15
7.3.80.0080.00817.15
7.3.70.0000.01217.15
7.3.60.0060.00917.15
7.3.50.0100.00717.15
7.3.40.0070.01017.15
7.3.30.0070.01017.15
7.3.20.0030.01317.15
7.3.10.0080.00916.84
7.3.00.0050.00916.95
7.2.330.0070.01016.69
7.2.320.0090.01516.68
7.2.310.0030.01316.64
7.2.300.0140.00416.38
7.2.290.0090.01216.42
7.2.240.0120.00317.15
7.2.230.0130.00317.15
7.2.220.0070.01017.15
7.2.210.0000.01717.15
7.2.200.0090.00617.15
7.2.190.0030.01317.15
7.2.180.0030.01117.15
7.2.170.0070.00717.15
7.2.160.0070.00717.15
7.2.150.0030.00617.15
7.2.140.0060.00917.15
7.2.130.0080.00517.07
7.2.120.0050.01116.99
7.2.110.0050.00916.98
7.2.100.0020.00916.93
7.2.90.0090.00516.98
7.2.80.0040.01016.92
7.2.70.0050.00717.08
7.2.60.0090.00416.90
7.2.50.0070.00616.93
7.2.40.0000.01217.03
7.2.30.0060.00817.09
7.2.20.0080.00916.93
7.2.10.0050.00716.99
7.2.00.0100.00817.63
7.1.330.0060.00617.15
7.1.320.0000.01317.15
7.1.310.0030.00717.15
7.1.300.0100.00717.15
7.1.290.0030.01417.15
7.1.280.0030.00717.15
7.1.270.0130.00317.15
7.1.260.0030.00917.15
7.1.250.0040.01016.49
7.1.200.0030.01015.86
7.1.100.0050.00518.16
7.1.70.0000.00917.09
7.1.60.0140.01019.11
7.1.50.0030.02116.71
7.1.00.0030.07322.44
7.0.200.0030.00616.88
7.0.140.0070.07022.11
7.0.60.0070.05719.79
7.0.50.0070.07717.97
7.0.40.0030.05320.23
7.0.30.0270.07320.06
7.0.20.0200.05320.12
7.0.10.0170.07020.13
7.0.00.0100.04720.32
5.6.280.0000.07721.15
5.6.210.0230.04320.70
5.6.200.0030.07318.15
5.6.190.0070.05020.41
5.6.180.0200.07720.48
5.6.170.0100.04720.45
5.6.160.0030.04720.56
5.6.150.0030.05018.19
5.6.140.0100.05018.16
5.6.130.0070.05718.20
5.6.120.0070.05720.97
5.6.110.0070.09020.99
5.6.100.0100.04021.07
5.6.90.0070.08720.98
5.6.80.0130.07320.38
5.6.70.0070.07320.38
5.5.350.0170.07720.41
5.5.340.0130.06318.02
5.5.330.0030.04320.42
5.5.320.0270.06020.52
5.5.310.0330.05020.35
5.5.300.0130.05318.07
5.5.290.0030.07318.01
5.5.280.0030.09020.71
5.5.270.0200.06720.76
5.5.260.0100.08020.95
5.5.250.0070.07320.55
5.5.240.0230.07720.19
5.4.450.0130.05319.34
5.4.440.0230.07719.23
5.4.430.0200.06319.51
5.4.420.0300.06719.47
5.4.410.0400.05319.36
5.4.400.0470.05319.07
5.4.390.0430.07318.93
5.4.380.0430.06719.16
5.4.370.0730.03719.06
5.4.360.0730.03318.93
5.4.350.0430.03319.04
5.4.340.0400.07019.16
5.4.320.0400.07019.22
5.4.310.0370.06019.14
5.4.300.0330.06018.94
5.4.290.0600.06019.04
5.4.280.0530.06319.04
5.4.270.0400.07319.25
5.4.260.0430.04719.16
5.4.250.0570.06019.18
5.4.240.0530.05319.05
5.4.230.0530.03718.95
5.4.220.0530.04019.12
5.4.210.0530.04719.04
5.4.200.0430.06319.12
5.4.190.0330.04018.96
5.4.180.0430.03718.95
5.4.170.0500.04019.14
5.4.160.0530.06718.91
5.4.150.0400.03718.91
5.4.140.0500.06016.43
5.4.130.0600.05716.39
5.4.120.0670.04716.35
5.4.110.0500.04716.48
5.4.100.0270.06316.50
5.4.90.0230.04716.21
5.4.80.0430.03316.20
5.4.70.0330.03716.51
5.4.60.0470.03016.54
5.4.50.0430.04716.42
5.4.40.0600.04716.50
5.4.30.0530.06316.29
5.4.20.0500.05016.45
5.4.10.0500.07016.44
5.4.00.0470.04715.89
5.3.290.0330.07714.58
5.3.280.0400.03714.61
5.3.270.0570.06314.48
5.3.260.0530.05714.61
5.3.250.0430.05014.60
5.3.240.0430.06714.62
5.3.230.0570.06314.48
5.3.220.0470.04314.62
5.3.210.0370.04314.57
5.3.200.0300.07314.73
5.3.190.0270.05714.64
5.3.180.0430.05014.45
5.3.170.0500.03014.62
5.3.160.0430.03714.58
5.3.150.0570.06014.61
5.3.140.0570.05014.47
5.3.130.0570.06014.46
5.3.120.0500.07014.58
5.3.110.0530.06314.60
5.3.100.0530.06714.08
5.3.90.0400.04314.03
5.3.80.0430.05014.01
5.3.70.0530.03714.16
5.3.60.0530.06013.93
5.3.50.0470.06014.00
5.3.40.0430.04014.00
5.3.30.0570.03013.95
5.3.20.0530.04713.85
5.3.10.0470.06313.55
5.3.00.0500.06713.80
5.2.170.0500.05311.07
5.2.160.0530.05011.19
5.2.150.0230.03311.18
5.2.140.0470.05311.17
5.2.130.0330.06011.11
5.2.120.0300.04011.15
5.2.110.0400.04711.11
5.2.100.0400.04011.11
5.2.90.0370.02711.10
5.2.80.0400.04011.08
5.2.70.0330.04311.01
5.2.60.0470.05711.09
5.2.50.0470.03311.18
5.2.40.0530.04711.14
5.2.30.0500.05310.98
5.2.20.0430.02310.85
5.2.10.0300.05310.82
5.2.00.0500.03710.70
5.1.60.0300.02710.00
5.1.50.0300.03710.13
5.1.40.0370.03710.11
5.1.30.0330.03310.34
5.1.20.0330.02710.34
5.1.10.0400.04010.02
5.1.00.0400.03310.13
5.0.50.0200.0208.61
5.0.40.0300.0338.43
5.0.30.0200.0538.24
5.0.20.0230.0278.22
5.0.10.0130.0278.22
5.0.00.0200.0578.18
4.4.90.0130.0337.54
4.4.80.0200.0207.54
4.4.70.0200.0137.54
4.4.60.0230.0337.54
4.4.50.0270.0307.54
4.4.40.0100.0537.54
4.4.30.0070.0177.54
4.4.20.0230.0337.54
4.4.10.0230.0207.54
4.4.00.0230.0307.54
4.3.110.0230.0307.54
4.3.100.0230.0237.54
4.3.90.0300.0237.54
4.3.80.0200.0307.54
4.3.70.0200.0307.54
4.3.60.0230.0177.54
4.3.50.0230.0307.54
4.3.40.0230.0407.54
4.3.30.0130.0337.54
4.3.20.0030.0277.54
4.3.10.0100.0377.54
4.3.00.0170.0207.54

preferences:
54.36 ms | 401 KiB | 5 Q