3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Example: chicken -> cnekcih $s = 'zwLc0Uzo,bQGPhVb&rsHNkkA'; echo substr($s, 0, 1) . strrev(substr($s, 1)); assert($s == 'cnekcih');

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)
8.3.60.0150.00416.63
8.3.50.0200.00821.12
8.3.40.0090.00618.84
8.3.30.0110.00418.62
8.3.20.0040.00420.16
8.3.10.0040.00423.66
8.3.00.0000.01117.93
8.2.180.0060.00918.36
8.2.170.0120.00322.96
8.2.160.0100.00320.53
8.2.150.0080.00024.18
8.2.140.0090.00024.66
8.2.130.0050.00226.16
8.2.120.0080.00317.63
8.2.110.0070.01720.52
8.2.100.0080.00417.72
8.2.90.0000.00819.05
8.2.80.0050.00317.97
8.2.70.0060.00317.62
8.2.60.0000.00817.93
8.2.50.0080.00018.07
8.2.40.0030.00618.16
8.2.30.0070.00018.13
8.2.20.0040.00417.76
8.2.10.0000.00718.15
8.2.00.0050.00217.97
8.1.280.0140.00025.92
8.1.270.0090.00920.20
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0040.00421.03
8.1.230.0040.00718.91
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0050.00317.35
8.1.180.0040.00418.10
8.1.170.0000.00818.78
8.1.160.0000.00718.88
8.1.150.0030.00320.30
8.1.140.0000.00917.44
8.1.130.0000.00717.57
8.1.120.0050.00317.36
8.1.110.0000.00917.34
8.1.100.0000.00717.45
8.1.90.0000.00817.48
8.1.80.0000.00817.34
8.1.70.0030.00517.45
8.1.60.0030.00617.50
8.1.50.0050.00317.52
8.1.40.0060.00317.41
8.1.30.0030.00617.60
8.1.20.0060.00317.65
8.1.10.0070.00017.42
8.1.00.0000.00717.50
8.0.300.0050.00218.77
8.0.290.0040.00416.75
8.0.280.0000.00818.45
8.0.270.0000.00717.12
8.0.260.0030.00317.25
8.0.250.0000.00717.00
8.0.240.0100.00016.90
8.0.230.0060.00316.98
8.0.220.0030.00316.93
8.0.210.0040.00416.93
8.0.200.0060.00016.98
8.0.190.0040.00417.03
8.0.180.0030.00516.95
8.0.170.0030.00516.95
8.0.160.0000.00816.99
8.0.150.0000.00716.80
8.0.140.0050.00516.78
8.0.130.0000.00513.35
8.0.120.0040.00416.91
8.0.110.0040.00416.88
8.0.100.0030.00316.83
8.0.90.0000.00716.89
8.0.80.0130.00316.89
8.0.70.0000.00716.96
8.0.60.0040.00416.97
8.0.50.0040.00417.05
8.0.30.0160.00217.05
8.0.20.0080.01117.40
8.0.10.0040.00416.86
8.0.00.0100.00616.84
7.4.330.0030.00315.08
7.4.320.0060.00016.58
7.4.300.0060.00316.42
7.4.290.0000.00816.40
7.4.280.0040.00416.59
7.4.270.0030.00316.57
7.4.260.0000.00716.55
7.4.250.0000.00816.45
7.4.240.0050.00216.47
7.4.230.0030.00316.69
7.4.220.0100.01716.66
7.4.210.0080.00816.60
7.4.200.0000.00716.43
7.4.160.0120.00316.42
7.4.150.0060.01917.40
7.4.140.0130.00817.86
7.4.130.0120.00816.61
7.4.120.0070.01116.52
7.4.110.0140.00316.49
7.4.100.0140.00716.36
7.4.90.0120.00616.47
7.4.80.0120.01119.39
7.4.70.0100.00716.46
7.4.60.0080.00816.47
7.4.50.0030.00516.45
7.4.40.0060.01616.35
7.4.30.0120.00916.53
7.4.00.0060.00815.05
7.3.330.0060.00013.17
7.3.320.0000.00513.16
7.3.310.0000.00716.19
7.3.300.0030.00316.40
7.3.290.0050.00216.28
7.3.280.0090.00816.30
7.3.270.0080.00917.40
7.3.260.0100.00716.39
7.3.250.0080.01016.44
7.3.240.0060.01116.21
7.3.230.0140.00316.39
7.3.210.0030.01316.29
7.3.200.0120.00416.36
7.3.190.0120.00916.50
7.3.180.0100.00716.44
7.3.170.0060.01216.35
7.3.160.0090.01416.51
7.3.120.0090.00814.68
7.3.110.0060.00914.75
7.3.100.0050.00914.65
7.3.90.0030.01414.68
7.3.80.0060.00914.84
7.3.70.0060.00714.72
7.3.60.0060.00714.87
7.3.50.0080.00614.56
7.3.40.0050.01114.83
7.3.30.0040.00714.68
7.3.20.0060.01016.61
7.3.10.0080.00616.59
7.3.00.0080.00616.71
7.2.330.0060.01016.66
7.2.320.0040.01316.59
7.2.310.0100.00516.32
7.2.300.0100.00716.64
7.2.290.0100.00716.28
7.2.250.0140.00515.05
7.2.240.0100.00814.95
7.2.230.0100.00415.01
7.2.220.0090.00414.95
7.2.210.0020.01214.65
7.2.200.0020.01014.87
7.2.190.0070.00614.87
7.2.180.0100.00514.96
7.2.170.0040.00814.92
7.2.160.0040.01114.61
7.2.150.0030.00916.80
7.2.140.0120.00316.59
7.2.130.0000.01116.83
7.2.120.0080.00616.79
7.2.110.0090.00616.74
7.2.100.0070.01016.73
7.2.90.0090.00616.91
7.2.80.0030.01016.84
7.2.70.0060.00616.82
7.2.60.0000.01616.70
7.2.50.0040.00716.82
7.2.40.0090.00616.53
7.2.30.0070.01016.76
7.2.20.0090.00916.73
7.2.10.0090.00316.95
7.2.00.0070.00718.16
7.1.330.0040.00815.81
7.1.320.0060.00815.81
7.1.310.0050.00815.73
7.1.300.0090.00515.73
7.1.290.0070.00615.73
7.1.280.0020.00915.61
7.1.270.0070.00615.67
7.1.260.0050.00815.73
7.1.250.0000.01615.79
7.1.200.0150.01215.51
7.1.100.0040.00818.25
7.1.70.0050.00517.13
7.1.60.0090.01519.13
7.1.50.0040.00717.01
7.1.00.0000.08022.48
7.0.200.0160.00714.64
7.0.110.0030.03320.10
7.0.100.0030.04020.09
7.0.90.0200.04019.89
7.0.80.0030.03319.95
7.0.70.0000.03720.04
7.0.60.0000.04019.93
7.0.50.0070.03320.01
7.0.40.0070.03019.66
7.0.30.0000.03719.78
7.0.20.0030.03319.86
7.0.10.0100.06019.72
7.0.00.0170.08319.70
5.6.280.0000.03320.88
5.6.260.0000.04020.58
5.6.250.0030.04020.64
5.6.240.0000.03720.67
5.6.230.0030.03320.68
5.6.220.0030.03320.67
5.6.210.0000.04020.72
5.6.200.0070.03020.59
5.6.190.0070.04020.85
5.6.180.0070.03020.64
5.6.170.0070.04320.54
5.6.160.0100.08720.55
5.6.150.0070.07720.64
5.6.140.0170.06320.84
5.6.130.0030.05020.62
5.6.120.0130.08320.67
5.6.110.0070.07020.66
5.6.100.0130.07320.53
5.6.90.0030.06320.65
5.6.80.0030.07020.00
5.6.70.0100.07320.04
5.6.60.0070.03319.96
5.6.50.0100.07319.91
5.6.40.0070.06719.99
5.6.30.0070.07319.91
5.6.20.0070.04720.00
5.6.10.0070.04019.82
5.6.00.0100.03319.97
5.5.380.0000.04017.63
5.5.370.0030.03717.51
5.5.360.0000.03717.52
5.5.350.0070.03017.76
5.5.340.0070.03018.16
5.5.330.0000.03717.98
5.5.320.0070.03017.99
5.5.310.0000.03717.89
5.5.300.0030.03718.16
5.5.290.0030.08017.77
5.5.280.0070.08018.09
5.5.270.0070.04317.76
5.5.260.0000.04318.02
5.5.250.0100.06317.97
5.5.240.0100.06017.51
5.5.230.0000.05317.27
5.5.220.0070.05017.49
5.5.210.0030.04017.22
5.5.200.0030.07017.52
5.5.190.0100.03017.47
5.5.180.0070.04317.19
5.5.160.0030.08717.21
5.5.150.0070.03717.37
5.5.140.0130.06017.33
5.5.130.0070.07717.50
5.5.120.0100.07017.24
5.5.110.0030.05717.51
5.5.100.0070.03317.27
5.5.90.0000.07317.27
5.5.80.0030.08717.37
5.5.70.0100.06017.49
5.5.60.0070.05317.11
5.5.50.0030.07317.11
5.5.40.0030.07317.36
5.5.30.0030.06317.22
5.5.20.0030.03717.26
5.5.10.0070.05317.09
5.5.00.0000.04317.09
5.4.450.0070.05719.33
5.4.440.0000.07719.59
5.4.430.0100.03719.43
5.4.420.0100.07319.32
5.4.410.0070.04019.15
5.4.400.0100.06319.00
5.4.390.0130.06019.27
5.4.380.0030.03319.03
5.4.370.0030.03319.03
5.4.360.0000.03719.25
5.4.350.0030.03719.03
5.4.340.0030.04019.18
5.4.320.0100.06719.11
5.4.310.0070.03719.07
5.4.300.0070.06719.09
5.4.290.0030.04019.24
5.4.280.0030.03718.98
5.4.270.0130.06019.25
5.4.260.0070.07319.15
5.4.250.0000.04019.00
5.4.240.0070.03019.11
5.4.230.0030.07719.15
5.4.220.0070.04018.99
5.4.210.0070.03019.17
5.4.200.0030.04718.94
5.4.190.0070.05719.16
5.4.180.0000.04019.23
5.4.170.0070.04319.10
5.4.160.0070.06319.11
5.4.150.0070.05719.15
5.4.140.0100.03316.17
5.4.130.0070.06716.28
5.4.120.0170.03316.47
5.4.110.0130.04016.13
5.4.100.0170.04316.41
5.4.90.0070.05716.48
5.4.80.0070.05716.36
5.4.70.0000.06316.17
5.4.60.0030.05016.48
5.4.50.0070.04016.15
5.4.40.0070.06316.38
5.4.30.0070.03716.43
5.4.20.0070.05316.32
5.4.10.0030.07716.34
5.4.00.0030.07315.73

preferences:
45.91 ms | 401 KiB | 5 Q