3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isCorrect($string) { if (strlen($string) % 2 === 0) { $start = 0; $string2; for( $i = $start; $i < strlen($string); $i++) { var_dump($string[6]); } return true; } return false; } $string = '({{}})'; isCorrect($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)
8.3.70.0160.00618.68
8.3.60.0140.00418.55
8.3.50.0310.00721.21
8.3.40.0090.00918.96
8.3.30.0040.01119.13
8.3.20.0000.00720.35
8.3.10.0030.00523.70
8.3.00.0040.00419.38
8.2.180.0030.01216.50
8.2.170.0180.00422.96
8.2.160.0100.00320.35
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00521.12
8.2.110.0100.00722.26
8.2.100.0100.00317.75
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0060.00320.01
8.2.30.0040.00418.01
8.2.20.0000.00817.66
8.2.10.0050.00318.13
8.2.00.0000.00717.75
8.1.280.0090.00925.92
8.1.270.0080.00023.79
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00023.84
8.1.230.0070.00419.07
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0070.00317.35
8.1.190.0040.00417.35
8.1.180.0050.00318.10
8.1.170.0000.00818.55
8.1.160.0040.00422.02
8.1.150.0000.00718.74
8.1.140.0000.00717.40
8.1.130.0030.00717.30
8.1.120.0040.00317.28
8.1.110.0050.00317.30
8.1.100.0040.00317.45
8.1.90.0050.00217.40
8.1.80.0000.00717.39
8.1.70.0030.00317.36
8.1.60.0040.00417.62
8.1.50.0040.00417.55
8.1.40.0040.00417.51
8.1.30.0030.00517.62
8.1.20.0040.00417.64
8.1.10.0000.00917.56
8.1.00.0040.00417.52
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00418.45
8.0.270.0070.00017.27
8.0.260.0040.00416.95
8.0.250.0030.00316.89
8.0.240.0050.00217.01
8.0.230.0030.00617.00
8.0.220.0030.00316.81
8.0.210.0030.00317.00
8.0.200.0030.00316.94
8.0.190.0070.00016.93
8.0.180.0040.00417.02
8.0.170.0000.00816.97
8.0.160.0040.00416.95
8.0.150.0000.00816.91
8.0.140.0000.00716.91
8.0.130.0030.00313.42
8.0.120.0040.00416.91
8.0.110.0050.00216.78
8.0.100.0000.00716.97
8.0.90.0000.00816.80
8.0.80.0060.00916.93
8.0.70.0070.00016.85
8.0.60.0040.00416.77
8.0.50.0030.00516.91
8.0.30.0080.01217.22
8.0.20.0110.00717.40
8.0.10.0040.00416.91
8.0.00.0140.00516.64
7.4.330.0020.00215.02
7.4.320.0060.00016.65
7.4.300.0000.00716.51
7.4.290.0000.00816.48
7.4.280.0000.01016.44
7.4.270.0080.00016.52
7.4.260.0000.00716.65
7.4.250.0000.00716.55
7.4.240.0040.00416.51
7.4.230.0020.00516.66
7.4.220.0140.00316.41
7.4.210.0040.01116.63
7.4.200.0000.00716.34
7.4.160.0080.00816.52
7.4.150.0070.01117.40
7.4.140.0040.01317.86
7.4.130.0040.01416.56
7.4.120.0010.01616.52
7.4.110.0090.00916.48
7.4.100.0090.00916.33
7.4.90.0030.01316.43
7.4.80.0110.00619.39
7.4.70.0130.00416.70
7.4.60.0060.01016.66
7.4.50.0000.00816.64
7.4.40.0100.00716.41
7.4.30.0110.00616.43
7.4.00.0080.00515.12
7.3.330.0030.00313.27
7.3.320.0060.00013.30
7.3.310.0070.00016.47
7.3.300.0000.00716.27
7.3.290.0120.00616.46
7.3.280.0070.01216.43
7.3.270.0120.00617.40
7.3.260.0070.01716.52
7.3.250.0080.00916.54
7.3.240.0110.00716.39
7.3.230.0100.01016.42
7.3.210.0050.01116.51
7.3.200.0090.00819.39
7.3.190.0030.01916.58
7.3.180.0040.01516.48
7.3.170.0110.01116.48
7.3.160.0100.00716.56
7.3.120.0070.01014.82
7.3.110.0060.01214.99
7.3.100.0060.01215.02
7.3.90.0070.01014.83
7.3.80.0080.00815.01
7.3.70.0100.00314.63
7.3.60.0000.01514.99
7.3.50.0040.01114.84
7.3.40.0060.00614.63
7.3.30.0030.01014.80
7.3.20.0050.00816.45
7.3.10.0050.00516.64
7.3.00.0000.01116.85
7.2.330.0110.00616.52
7.2.320.0100.01316.42
7.2.310.0120.00816.66
7.2.300.0050.01216.72
7.2.290.0160.00316.84
7.2.250.0120.00614.73
7.2.240.0030.01615.25
7.2.230.0030.00715.10
7.2.220.0070.01115.01
7.2.210.0040.01114.73
7.2.200.0030.01014.95
7.2.190.0100.00715.00
7.2.180.0030.00615.11
7.2.170.0080.00415.16
7.2.60.0140.00017.06
7.2.00.0080.00419.35
7.1.330.0070.00715.95
7.1.320.0070.01016.12
7.1.310.0110.00315.65
7.1.300.0000.01215.80
7.1.290.0030.00915.55
7.1.280.0000.01416.04
7.1.270.0050.00415.85
7.1.260.0070.00315.89
7.1.200.0060.00615.94
7.1.100.0070.00717.96
7.1.70.0030.00917.19
7.1.60.0070.01719.11
7.1.50.0140.01116.80
7.1.00.0000.08022.30
7.0.200.0040.00416.95
7.0.140.0030.07322.12
7.0.60.0070.07020.00
7.0.50.0170.07317.83
7.0.40.0200.07020.05
7.0.30.0370.07020.23
7.0.20.0270.08020.05
7.0.10.0330.06020.07
7.0.00.0130.07020.16
5.6.280.0000.07321.02
5.6.210.0200.08020.67
5.6.200.0070.08318.20
5.6.190.0070.05720.68
5.6.180.0300.04320.46
5.6.170.0200.08720.40
5.6.160.0000.04320.50
5.6.150.0030.07018.18
5.6.140.0030.05018.15
5.6.130.0100.05018.14
5.6.120.0100.08020.97
5.6.110.0100.08321.09
5.6.100.0170.06020.89
5.6.90.0000.08721.00
5.6.80.0100.06320.41
5.6.70.3670.03320.43
5.5.350.0130.07320.43
5.5.340.0000.04017.98
5.5.330.0030.04020.29
5.5.320.0270.05320.31
5.5.310.0200.04320.37
5.5.300.0070.05318.09
5.5.290.0130.04317.97
5.5.280.0000.04320.88
5.5.270.0100.05320.79
5.5.260.0100.06320.95
5.5.250.0100.07720.61
5.5.240.0400.06720.34
5.4.450.0270.05719.39
5.4.440.0700.07319.19
5.4.430.0370.06319.59
5.4.420.0700.00019.42
5.4.410.0670.00019.42
5.4.400.0630.00019.24
5.4.390.0700.00019.11
5.4.380.0800.00018.98
5.4.370.0700.00019.23
5.4.360.0630.00018.98
5.4.350.0900.00019.03
5.4.340.0050.03612.02
5.4.320.0080.03412.50
5.4.310.0050.03912.50
5.4.300.0050.03712.50
5.4.290.0020.04112.50
5.4.280.0090.03312.40
5.4.270.0070.04012.40
5.4.260.0080.03512.39
5.4.250.0070.04712.40
5.4.240.0110.04412.40
5.4.230.0070.04212.39
5.4.220.0060.03812.39
5.4.210.0060.04412.39
5.4.200.0040.04712.39
5.4.190.0050.03812.39
5.4.180.0040.04212.39
5.4.170.0070.04012.39
5.4.160.0090.04212.39
5.4.150.0090.03712.39
5.4.140.0080.04212.07
5.4.130.0080.03912.05
5.4.120.0110.03912.01
5.4.110.0060.04612.01
5.4.100.0060.03612.01
5.4.90.0060.03612.01
5.4.80.0060.03912.01
5.4.70.0060.03412.01
5.4.60.0040.03512.01
5.4.50.0060.03412.01
5.4.40.0050.03412.00
5.4.30.0040.03611.99
5.4.20.0070.03311.99
5.4.10.0080.03511.99
5.4.00.0060.03511.48
5.3.290.0100.04012.80
5.3.280.0060.04012.71
5.3.270.0050.04012.72
5.3.260.0050.04012.72
5.3.250.0060.03812.72
5.3.240.0060.03812.72
5.3.230.0050.04012.71
5.3.220.0040.03912.68
5.3.210.0050.04112.68
5.3.200.0060.03712.68
5.3.190.0010.04212.68
5.3.180.0070.03512.68
5.3.170.0060.03612.67
5.3.160.0030.04312.67
5.3.150.0050.03712.68
5.3.140.0060.03412.66
5.3.130.0090.03612.66
5.3.120.0100.03412.66
5.3.110.0090.03812.66
5.3.100.0110.03612.12
5.3.90.0060.03412.10
5.3.80.0060.03412.09
5.3.70.0050.03612.09
5.3.60.0040.03712.08
5.3.50.0050.03812.02
5.3.40.0080.03312.02
5.3.30.0070.03311.98
5.3.20.0090.04011.76
5.3.10.0100.03611.73
5.3.00.0080.04011.72
5.2.170.0050.0339.21
5.2.160.0040.0379.21
5.2.150.0090.0299.21
5.2.140.0050.0359.21
5.2.130.0040.0309.17
5.2.120.0060.0269.17
5.2.110.0070.0359.18
5.2.100.0040.0329.17
5.2.90.0060.0279.18
5.2.80.0040.0329.17
5.2.70.0040.0309.17
5.2.60.0060.0279.13
5.2.50.0080.0269.09
5.2.40.0060.0279.07
5.2.30.0060.0289.04
5.2.20.0050.0279.03
5.2.10.0020.0298.94
5.2.00.0060.0408.80
5.1.60.0040.0238.08
5.1.50.0030.0278.08
5.1.40.0020.0268.06
5.1.30.0120.0338.41
5.1.20.0060.0248.43
5.1.10.0060.0238.16
5.1.00.0080.0218.16
5.0.50.0030.0216.63
5.0.40.0060.0196.50
5.0.30.0030.0316.31
5.0.20.0040.0276.28
5.0.10.0050.0206.26
5.0.00.0050.0286.25
4.4.90.0030.0154.78
4.4.80.0050.0124.75
4.4.70.0040.0134.75
4.4.60.0020.0154.75
4.4.50.0020.0164.77
4.4.40.0030.0254.71
4.4.30.0050.0154.76
4.4.20.0010.0164.84
4.4.10.0020.0154.84
4.4.00.0060.0294.76
4.3.110.0070.0174.67
4.3.100.0020.0154.66
4.3.90.0020.0154.63
4.3.80.0040.0224.58
4.3.70.0030.0144.63
4.3.60.0020.0154.62
4.3.50.0020.0164.63
4.3.40.0020.0244.54
4.3.30.0020.0153.30
4.3.20.0020.0153.27
4.3.10.0020.0183.24
4.3.00.0000.0236.64

preferences:
49.66 ms | 401 KiB | 5 Q