3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isCorrect($string) { if (strlen($string) % 2 === 0) { for( $i = 0; $i < strlen($string); $i++) { var_dump($string[$i]); } 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)
8.3.60.0100.01018.30
8.3.50.0290.00721.14
8.3.40.0060.00918.50
8.3.30.0140.00019.04
8.3.20.0080.00020.38
8.3.10.0080.00023.60
8.3.00.0040.00419.38
8.2.180.0110.00716.38
8.2.170.0120.00922.96
8.2.160.0030.01020.35
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00722.08
8.2.110.0030.00622.25
8.2.100.0090.00317.63
8.2.90.0000.00719.30
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0040.00418.05
8.2.50.0030.00518.07
8.2.40.0040.00420.07
8.2.30.0070.00018.18
8.2.20.0000.00817.75
8.2.10.0030.00618.07
8.2.00.0040.00417.56
8.1.280.0070.00725.92
8.1.270.0060.00323.96
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0080.00323.96
8.1.230.0080.00319.16
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0080.00017.23
8.1.180.0000.00818.10
8.1.170.0000.00818.52
8.1.160.0050.00221.86
8.1.150.0000.00718.75
8.1.140.0000.00717.38
8.1.130.0030.00317.74
8.1.120.0000.00717.48
8.1.110.0040.00417.29
8.1.100.0070.00017.44
8.1.90.0000.00717.43
8.1.80.0000.00717.43
8.1.70.0000.00717.34
8.1.60.0040.00417.49
8.1.50.0000.00817.46
8.1.40.0070.00017.52
8.1.30.0040.00417.72
8.1.20.0030.00617.48
8.1.10.0000.00717.43
8.1.00.0000.00817.40
8.0.300.0000.00718.77
8.0.290.0070.00016.63
8.0.280.0000.00718.35
8.0.270.0030.00317.26
8.0.260.0030.00617.23
8.0.250.0030.00317.02
8.0.240.0000.00716.95
8.0.230.0040.00416.93
8.0.220.0000.00616.78
8.0.210.0040.00416.92
8.0.200.0030.00316.97
8.0.190.0060.00316.84
8.0.180.0000.00716.89
8.0.170.0040.00416.91
8.0.160.0030.00317.03
8.0.150.0020.00516.84
8.0.140.0040.00416.86
8.0.130.0030.00313.28
8.0.120.0040.00416.75
8.0.110.0070.00016.93
8.0.100.0000.00716.79
8.0.90.0040.00416.70
8.0.80.0060.00916.92
8.0.70.0040.00416.94
8.0.60.0040.00416.93
8.0.50.0040.00417.01
8.0.30.0080.01316.98
8.0.20.0130.00917.40
8.0.10.0070.00017.13
8.0.00.0090.00816.74
7.4.330.0030.00315.02
7.4.320.0000.00716.53
7.4.300.0000.00616.61
7.4.290.0000.00716.58
7.4.280.0060.00516.43
7.4.270.0000.00716.43
7.4.260.0030.00316.60
7.4.250.0030.00316.56
7.4.240.0030.00316.48
7.4.230.0070.00016.41
7.4.220.0060.01616.45
7.4.210.0080.00716.68
7.4.200.0050.00216.54
7.4.160.0040.01416.51
7.4.150.0100.01017.40
7.4.140.0100.00917.86
7.4.130.0070.01016.52
7.4.120.0110.00616.60
7.4.110.0030.01416.62
7.4.100.0060.01616.43
7.4.90.0090.00916.50
7.4.80.0100.00719.39
7.4.70.0060.01216.56
7.4.60.0120.01216.57
7.4.50.0040.00416.59
7.4.40.0110.00616.61
7.4.30.0060.01216.49
7.4.00.0110.00415.13
7.3.330.0020.00213.32
7.3.320.0050.00013.24
7.3.310.0030.00316.46
7.3.300.0030.00316.38
7.3.290.0040.01016.37
7.3.280.0080.00816.36
7.3.270.0030.01517.40
7.3.260.0130.01016.49
7.3.250.0110.00916.56
7.3.240.0110.00716.62
7.3.230.0090.00916.39
7.3.210.0100.00716.70
7.3.200.0070.01319.39
7.3.190.0060.01616.68
7.3.180.0060.01216.28
7.3.170.0070.01116.29
7.3.160.0090.00616.39
7.2.330.0000.01716.80
7.2.320.0060.01316.52
7.2.310.0090.00916.73
7.2.300.0180.01316.64
7.2.290.0140.00616.75
7.2.80.0040.00816.59
7.2.00.0120.01419.46
7.1.200.0060.00615.50
7.1.100.0070.00718.04
7.1.70.0030.00817.38
7.1.60.0130.01319.11
7.1.50.0100.01016.50
7.1.00.0130.06722.54
7.0.200.0030.00716.89
7.0.140.0070.07021.95
7.0.100.0130.06319.99
7.0.90.0230.05719.92
7.0.80.0130.08019.90
7.0.70.0300.07019.86
7.0.60.0070.08319.96
7.0.50.0130.06020.31
7.0.40.0070.05020.09
7.0.30.0070.08720.13
7.0.20.0100.08720.04
7.0.10.0100.04719.94
7.0.00.0100.06320.03
5.6.280.0070.07021.04
5.6.250.0000.05020.66
5.6.240.0130.07320.69
5.6.230.0170.05720.59
5.6.220.0070.05320.49
5.6.210.0130.08720.45
5.6.200.0030.09021.04
5.6.190.0070.09021.01
5.6.180.0070.07021.08
5.6.170.0100.05321.04
5.6.160.0070.07021.07
5.6.150.0070.07321.11
5.6.140.0030.08020.96
5.6.130.0170.07321.11
5.6.120.0030.09020.93
5.6.110.0030.07721.05
5.6.100.0030.05321.03
5.6.90.0030.04320.92
5.6.80.0070.03720.47
5.6.70.0070.03720.49
5.6.60.0000.04320.48
5.6.50.0000.04320.46
5.6.40.0030.04720.39
5.6.30.0030.04020.44
5.6.20.0030.05320.32
5.6.10.0000.04720.29
5.6.00.0070.06020.30
5.5.380.0000.09020.42
5.5.370.0100.07020.42
5.5.360.0130.07020.43
5.5.350.0000.04720.39
5.5.340.0100.08320.80
5.5.330.0070.08720.73
5.5.320.0170.07720.84
5.5.310.0100.08020.82
5.5.300.0100.07020.73
5.5.290.0100.07720.87
5.5.280.0070.06020.92
5.5.270.0200.07020.75
5.5.260.0070.08720.91
5.5.250.0070.04020.55
5.5.240.0030.04020.18
5.5.230.0070.04020.27
5.5.220.0070.04320.17
5.5.210.0000.04020.18
5.5.200.0030.04020.00
5.5.190.0030.09020.11
5.5.180.0130.07020.06
5.5.160.0030.04320.11
5.5.150.0000.04320.20
5.5.140.0100.04020.27
5.5.130.0070.04720.18
5.5.120.0030.04020.26
5.5.110.0070.05020.14
5.5.100.0100.03320.16
5.5.90.0070.05020.07
5.5.80.0000.04719.97
5.5.70.0030.04020.06
5.5.60.0000.04020.02
5.5.50.0030.04320.06
5.5.40.0070.03719.95
5.5.30.0130.05020.10
5.5.20.0070.03720.00
5.5.10.0000.04320.03
5.5.00.0070.03319.98
5.4.450.0130.07019.54
5.4.440.0070.06019.53
5.4.430.0170.05019.53
5.4.420.0030.08019.54
5.4.410.0030.04019.40
5.4.400.0000.04019.09
5.4.390.0070.04319.13
5.4.380.0070.03319.09
5.4.370.0030.03718.95
5.4.360.0070.03318.85
5.4.350.0030.04019.22
5.4.340.0070.07318.95
5.4.320.0030.04018.95
5.4.310.0030.04319.18
5.4.300.0000.04018.87
5.4.290.0070.03719.12
5.4.280.0070.04719.18
5.4.270.0030.06019.24
5.4.260.0070.03319.03
5.4.250.0000.04319.20
5.4.240.0000.04719.20
5.4.230.0070.03319.04
5.4.220.0000.04018.92
5.4.210.0000.05319.02
5.4.200.0030.04318.89
5.4.190.0030.04719.17
5.4.180.0030.03718.84
5.4.170.0000.04319.03
5.4.160.0070.03718.86
5.4.150.0070.03319.11
5.4.140.0100.03016.33
5.4.130.0070.04316.40
5.4.120.0030.03316.48
5.4.110.0070.03016.49
5.4.100.0100.03016.43
5.4.90.0030.03316.36
5.4.80.0030.03316.46
5.4.70.0030.03716.48
5.4.60.0070.04016.31
5.4.50.0070.03316.45
5.4.40.0030.06016.53
5.4.30.0000.07716.36
5.4.20.0070.06716.23
5.4.10.0030.04016.39
5.4.00.0070.06315.89
5.3.290.0030.03314.70
5.3.280.0030.04314.73
5.3.270.0000.04314.66
5.3.260.0030.03714.58
5.3.250.0030.04314.59
5.3.240.0030.03314.67
5.3.230.0030.04014.57
5.3.220.0030.04314.63
5.3.210.0100.04014.59
5.3.200.0100.03014.59
5.3.190.0030.03714.65
5.3.180.0070.03314.62
5.3.170.0070.07714.54
5.3.160.0070.07014.70
5.3.150.0100.04314.59
5.3.140.0000.04314.47
5.3.130.0030.06314.63
5.3.120.0030.07314.59
5.3.110.0030.08014.68
5.3.100.0070.07013.99
5.3.90.0070.03314.08
5.3.80.0070.07313.99
5.3.70.0030.07314.03
5.3.60.0070.06714.05
5.3.50.0030.07713.84
5.3.40.0070.07314.06
5.3.30.0100.07313.96
5.3.20.0070.07013.82
5.3.10.0070.06713.66
5.3.00.0170.06713.62
5.2.170.0000.06711.58
5.2.160.0130.05011.58
5.2.150.0070.06311.58
5.2.140.0030.03711.58
5.2.130.0030.06711.58
5.2.120.0070.05711.58
5.2.110.0170.05011.58
5.2.100.0030.06011.58
5.2.90.0070.04011.58
5.2.80.0100.05311.58
5.2.70.0030.06711.58
5.2.60.0100.05711.58
5.2.50.0070.06311.58
5.2.40.0070.05711.58
5.2.30.0000.06311.58
5.2.20.0030.06011.58
5.2.10.0070.06011.58
5.2.00.0070.06711.58
5.1.60.0130.04011.58
5.1.50.0100.05011.58
5.1.40.0070.03711.58
5.1.30.0070.05711.58
5.1.20.0070.04711.58
5.1.10.0070.05311.58
5.1.00.0100.03011.58
5.0.50.0030.03711.58
5.0.40.0030.04011.58
5.0.30.0000.07011.58
5.0.20.0030.04711.58
5.0.10.0030.04311.58
5.0.00.0000.05311.58
4.4.90.0000.03711.58
4.4.80.0000.03711.58
4.4.70.0030.03311.58
4.4.60.0030.03311.58
4.4.50.0030.02011.58
4.4.40.0070.05011.58
4.4.30.0070.03011.58
4.4.20.0030.02711.58
4.4.10.0070.03311.58
4.4.00.0100.04711.58
4.3.110.0000.04011.58
4.3.100.0030.03311.58
4.3.90.0030.03311.58
4.3.80.0000.04011.58
4.3.70.0000.03711.58
4.3.60.0000.01711.58
4.3.50.0000.02011.58
4.3.40.0070.04311.58
4.3.30.0000.03011.58
4.3.20.0000.03711.58
4.3.10.0100.03011.58
4.3.00.0000.03311.58

preferences:
45.26 ms | 401 KiB | 5 Q