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)
8.3.60.0150.00318.31
8.3.50.0140.00621.02
8.3.40.0070.00718.93
8.3.30.0070.00719.23
8.3.20.0050.00320.34
8.3.10.0000.00823.71
8.3.00.0030.00619.20
8.2.180.0130.00316.63
8.2.170.0030.01022.96
8.2.160.0100.00320.23
8.2.150.0020.00524.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0000.00721.95
8.2.110.0100.00622.25
8.2.100.0040.00817.88
8.2.90.0000.00719.17
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0060.00320.07
8.2.30.0000.00718.23
8.2.20.0030.00617.86
8.2.10.0040.00418.11
8.2.00.0080.00017.66
8.1.280.0040.01125.92
8.1.270.0060.00323.95
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00323.92
8.1.230.0090.00319.04
8.1.220.0040.00417.74
8.1.210.0000.00718.77
8.1.200.0030.00617.10
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0000.00818.50
8.1.160.0070.00021.95
8.1.150.0070.00018.86
8.1.140.0040.00417.27
8.1.130.0040.00417.82
8.1.120.0050.00217.39
8.1.110.0080.00017.43
8.1.100.0070.00017.34
8.1.90.0050.00217.34
8.1.80.0000.00817.37
8.1.70.0000.00717.26
8.1.60.0090.00017.61
8.1.50.0050.00317.41
8.1.40.0000.00717.42
8.1.30.0030.00517.58
8.1.20.0000.00717.63
8.1.10.0060.00317.55
8.1.00.0030.00617.58
8.0.300.0070.00018.77
8.0.290.0040.00416.88
8.0.280.0070.00018.43
8.0.270.0000.00717.26
8.0.260.0030.00317.13
8.0.250.0000.00717.06
8.0.240.0000.00616.88
8.0.230.0090.00016.99
8.0.220.0070.00016.95
8.0.210.0070.00017.00
8.0.200.0050.00216.97
8.0.190.0040.00417.02
8.0.180.0040.00416.93
8.0.170.0040.00417.00
8.0.160.0000.00816.87
8.0.150.0000.00816.85
8.0.140.0000.00816.90
8.0.130.0030.00313.36
8.0.120.0000.01016.80
8.0.110.0050.00316.89
8.0.100.0000.00716.99
8.0.90.0040.00416.96
8.0.80.0080.00816.85
8.0.70.0000.00816.98
8.0.60.0040.00416.83
8.0.50.0040.00416.84
8.0.30.0090.01517.06
8.0.20.0080.01017.40
8.0.10.0000.00716.98
8.0.00.0090.01216.63
7.4.330.0000.00515.02
7.4.320.0000.00616.41
7.4.300.0030.00316.50
7.4.290.0000.00716.50
7.4.280.0030.00716.55
7.4.270.0070.00016.61
7.4.260.0030.00316.43
7.4.250.0050.00316.57
7.4.240.0000.00716.51
7.4.230.0030.00316.39
7.4.220.0070.01016.54
7.4.210.0070.01016.52
7.4.200.0070.00016.68
7.4.160.0090.01216.51
7.4.150.0070.01117.40
7.4.140.0030.01717.86
7.4.130.0060.01116.53
7.4.120.0070.01116.54
7.4.110.0090.00916.48
7.4.100.0100.00916.48
7.4.90.0120.00916.45
7.4.80.0060.01219.39
7.4.70.0110.00516.64
7.4.60.0030.01416.36
7.4.50.0050.00316.63
7.4.40.0170.00016.34
7.4.30.0100.00716.49
7.4.00.0060.00914.89
7.3.330.0030.00313.26
7.3.320.0020.00213.38
7.3.310.0000.00616.45
7.3.300.0000.00616.38
7.3.290.0070.01016.46
7.3.280.0080.00916.36
7.3.270.0090.00917.40
7.3.260.0060.01116.28
7.3.250.0070.01316.62
7.3.240.0120.00616.49
7.3.230.0100.01316.41
7.3.210.0120.00416.41
7.3.200.0070.01019.39
7.3.190.0110.01416.39
7.3.180.0060.00916.52
7.3.170.0110.01116.43
7.3.160.0080.00816.47
7.2.330.0110.00716.74
7.2.320.0110.01416.76
7.2.310.0110.00716.55
7.2.300.0090.00816.54
7.2.290.0000.02016.65
7.2.00.0040.00819.45
7.1.100.0030.00918.02
7.1.70.0040.00417.10
7.1.60.0040.01919.11
7.1.50.0060.01616.50
7.1.00.0030.07722.25
7.0.200.0030.00816.96
7.0.140.0000.07722.18
7.0.60.0100.07019.91
7.0.50.0130.05717.84
7.0.40.0030.09020.21
7.0.30.0200.04720.12
7.0.20.0230.05320.16
7.0.10.0030.08020.19
7.0.00.0030.04720.09
5.6.280.0070.07021.13
5.6.210.0130.07320.65
5.6.200.0130.06318.24
5.6.190.0070.07720.77
5.6.180.0200.04020.52
5.6.170.0230.03320.47
5.6.160.0030.06020.62
5.6.150.0070.08018.16
5.6.140.0100.05018.21
5.6.130.0030.09018.18
5.6.120.0100.08020.89
5.6.110.0130.07721.13
5.6.100.0170.07721.00
5.6.90.0130.08020.96
5.6.80.0100.07320.51
5.6.70.4470.04020.53
5.5.350.0200.07320.41
5.5.340.0070.07718.08
5.5.330.0070.03720.13
5.5.320.0330.06320.38
5.5.310.0300.06320.34
5.5.300.0000.04718.05
5.5.290.0070.07017.92
5.5.280.0000.08020.96
5.5.270.0130.04320.95
5.5.260.0130.06720.68
5.5.250.0030.07720.69
5.5.240.0300.06720.07
5.4.450.0600.05719.59
5.4.440.0630.05719.39
5.4.430.0630.05719.58
5.4.420.0670.00019.56
5.4.410.0900.00019.25
5.4.400.0630.00019.31
5.4.390.0830.00019.16
5.4.380.0670.00018.98
5.4.370.0670.00019.02
5.4.360.0630.00019.07
5.4.350.0670.00019.11
5.4.340.0110.02912.02
5.4.320.0060.04312.51
5.4.310.0050.03812.50
5.4.300.0070.03612.51
5.4.290.0090.03512.50
5.4.280.0040.03712.40
5.4.270.0060.03512.40
5.4.260.0060.03712.40
5.4.250.0040.04512.40
5.4.240.0030.03812.40
5.4.230.0060.03712.39
5.4.220.0050.03612.39
5.4.210.0100.03012.39
5.4.200.0100.03312.39
5.4.190.0060.03512.39
5.4.180.0070.03612.39
5.4.170.0030.03912.39
5.4.160.0070.03412.39
5.4.150.0090.03112.38
5.4.140.0070.03412.07
5.4.130.0030.03912.05
5.4.120.0070.03312.02
5.4.110.0030.04012.01
5.4.100.0100.03112.02
5.4.90.0060.03612.01
5.4.80.0070.03612.01
5.4.70.0090.03112.00
5.4.60.0070.03312.01
5.4.50.0070.03612.00
5.4.40.0050.03712.00
5.4.30.0080.03312.00
5.4.20.0070.03412.00
5.4.10.0070.03311.99
5.4.00.0060.03611.48
5.3.290.0060.03812.80
5.3.280.0050.03912.71
5.3.270.0080.04312.72
5.3.260.0060.04112.72
5.3.250.0030.03812.72
5.3.240.0030.03912.72
5.3.230.0060.03712.71
5.3.220.0100.03612.68
5.3.210.0050.03912.68
5.3.200.0060.03512.68
5.3.190.0070.04412.67
5.3.180.0060.03512.67
5.3.170.0060.03512.67
5.3.160.0080.03412.67
5.3.150.0070.04012.67
5.3.140.0050.03712.66
5.3.130.0080.03612.66
5.3.120.0050.04012.66
5.3.110.0090.04212.66
5.3.100.0060.03912.12
5.3.90.0070.03912.10
5.3.80.0060.03512.09
5.3.70.0090.03312.09
5.3.60.0070.03412.08
5.3.50.0090.03212.02
5.3.40.0070.03412.02
5.3.30.0050.03511.98
5.3.20.0030.03811.76
5.3.10.0050.03511.73
5.3.00.0060.03511.71
5.2.170.0040.0309.21
5.2.160.0040.0299.21
5.2.150.0060.0289.21
5.2.140.0060.0289.21
5.2.130.0070.0259.17
5.2.120.0040.0289.17
5.2.110.0040.0299.18
5.2.100.0030.0299.18
5.2.90.0080.0259.17
5.2.80.0060.0289.17
5.2.70.0050.0299.17
5.2.60.0060.0289.13
5.2.50.0050.0299.09
5.2.40.0030.0319.07
5.2.30.0080.0259.04
5.2.20.0090.0269.04
5.2.10.0070.0268.94
5.2.00.0070.0278.80
5.1.60.0030.0258.09
5.1.50.0070.0258.08
5.1.40.0030.0248.06
5.1.30.0040.0268.41
5.1.20.0050.0268.43
5.1.10.0020.0288.16
5.1.00.0030.0278.17
5.0.50.0030.0216.64
5.0.40.0020.0206.50
5.0.30.0040.0316.31
5.0.20.0070.0216.27
5.0.10.0040.0206.26
5.0.00.0050.0296.25
4.4.90.0020.0164.78
4.4.80.0020.0164.75
4.4.70.0030.0154.76
4.4.60.0030.0154.75
4.4.50.0030.0154.77
4.4.40.0040.0254.71
4.4.30.0040.0194.76
4.4.20.0040.0164.85
4.4.10.0020.0194.85
4.4.00.0040.0264.76
4.3.110.0030.0154.67
4.3.100.0040.0134.66
4.3.90.0030.0144.63
4.3.80.0040.0244.59
4.3.70.0020.0154.63
4.3.60.0030.0154.62
4.3.50.0010.0194.63
4.3.40.0050.0244.54
4.3.30.0020.0153.30
4.3.20.0010.0163.28
4.3.10.0040.0133.24
4.3.00.0100.0306.64

preferences:
41.97 ms | 401 KiB | 5 Q