3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ''; $code = ''; for ($i = 0; isset($input[$i]); $i++) { $code .= $code ? '.' : ''; $code .= sprintf('(function($str, $pos) { $length = (function($str) { for ($l = 0; isset($str[$l]); $l++) {} return $l - 1; })($str); return $str[$length - $pos]; })(%s, %u)', var_export($input, true), $i); } $code = sprintf('return %s;', $code); var_dump($code); var_dump(eval($code));

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)
8.3.60.0090.00618.43
8.3.50.0110.00921.92
8.3.40.0120.00318.70
8.3.30.0070.00719.05
8.3.20.0040.00420.18
8.3.10.0040.00421.76
8.3.00.0110.00019.30
8.2.180.0110.00716.34
8.2.170.0090.00622.96
8.2.160.0070.00719.41
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0110.00426.16
8.2.120.0080.00020.45
8.2.110.0030.00722.26
8.2.100.0080.00417.72
8.2.90.0000.00819.21
8.2.80.0000.00917.97
8.2.70.0000.00917.50
8.2.60.0000.00817.91
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0030.00618.25
8.2.20.0070.00017.79
8.2.10.0050.00218.12
8.2.00.0030.00617.75
8.1.280.0100.00625.92
8.1.270.0040.00422.05
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00023.96
8.1.230.0000.01119.16
8.1.220.0030.00517.74
8.1.210.0030.00518.77
8.1.200.0050.00517.35
8.1.190.0040.00417.30
8.1.180.0040.00418.10
8.1.170.0080.00018.65
8.1.160.0070.00022.02
8.1.150.0000.00718.77
8.1.140.0040.00417.41
8.1.130.0030.00317.75
8.1.120.0030.00317.52
8.1.110.0040.00417.46
8.1.100.0000.00917.32
8.1.90.0030.00317.37
8.1.80.0050.00217.47
8.1.70.0080.00017.28
8.1.60.0040.00417.55
8.1.50.0030.00617.48
8.1.40.0060.00317.44
8.1.30.0040.00417.49
8.1.20.0000.00717.61
8.1.10.0000.00717.50
8.1.00.0040.00417.36
8.0.300.0040.00418.77
8.0.290.0040.00417.17
8.0.280.0030.00318.45
8.0.270.0040.00417.27
8.0.260.0030.00317.27
8.0.250.0050.00216.99
8.0.240.0030.00316.96
8.0.230.0040.00416.93
8.0.220.0070.00016.96
8.0.210.0000.00716.91
8.0.200.0070.00016.92
8.0.190.0000.00717.01
8.0.180.0070.00016.89
8.0.170.0000.00716.79
8.0.160.0040.00416.90
8.0.150.0070.00016.86
8.0.140.0030.00316.75
8.0.130.0070.00213.32
8.0.120.0000.00816.83
8.0.110.0050.00316.80
8.0.100.0000.00816.79
8.0.90.0040.00416.75
8.0.80.0100.00616.87
8.0.70.0040.00416.71
8.0.60.0000.00816.71
8.0.50.0000.00716.80
8.0.30.0080.01317.04
8.0.20.0090.00917.40
8.0.10.0000.00816.90
8.0.00.0090.01116.73
7.4.330.0020.00215.03
7.4.320.0030.00316.42
7.4.300.0060.00016.41
7.4.290.0030.00316.62
7.4.280.0070.00016.37
7.4.270.0050.00216.60
7.4.260.0000.00716.49
7.4.250.0050.00316.60
7.4.240.0020.00616.51
7.4.230.0000.00716.52
7.4.220.0060.00916.45
7.4.210.0100.01016.55
7.4.200.0070.00016.57
7.4.160.0130.00316.34
7.4.150.0110.00617.40
7.4.140.0100.00917.86
7.4.130.0100.00816.40
7.4.120.0140.00616.51
7.4.110.0100.01016.56
7.4.100.0100.00716.37
7.4.90.0080.00816.47
7.4.80.0060.00919.39
7.4.70.0090.01216.47
7.4.60.0100.00616.44
7.4.50.0040.00416.46
7.4.40.0100.00616.46
7.4.30.0110.00716.74
7.4.00.0030.01014.85
7.3.330.0000.00613.07
7.3.320.0020.00213.06
7.3.310.0070.00016.25
7.3.300.0000.00716.13
7.3.290.0100.00316.23
7.3.280.0060.01016.21
7.3.270.0130.00417.40
7.3.260.0100.00616.24
7.3.250.0120.00716.21
7.3.240.0140.00716.48
7.3.230.0030.01616.42
7.3.210.0130.00316.42
7.3.200.0090.01219.39
7.3.190.0110.01116.26
7.3.180.0040.01216.24
7.3.170.0030.01516.48
7.3.160.0110.00816.24
7.2.330.0040.01416.71
7.2.320.0100.00716.67
7.2.310.0110.00716.69
7.2.300.0050.01116.59
7.2.290.0070.01416.45
7.2.60.0220.00216.79
7.2.00.0040.00819.53
7.1.200.0150.00915.18
7.1.100.0040.00418.26
7.1.70.0000.01017.27
7.1.60.0070.01819.29
7.1.50.0090.01217.00
7.1.00.0030.07722.46
7.0.200.0000.01016.57
7.0.140.0000.05321.92
7.0.60.0100.08020.04
7.0.50.0070.05017.66
7.0.40.0070.06720.30
7.0.30.0270.04720.18
7.0.20.0270.05020.20
7.0.10.0070.04020.01
7.0.00.0070.05320.16
5.6.280.0070.07021.10
5.6.210.0070.08020.61
5.6.200.0000.05018.17
5.6.190.0030.04320.35
5.6.180.0500.06720.41
5.6.170.0300.06720.38
5.6.160.0030.09020.48
5.6.150.0100.05718.12
5.6.140.0130.07018.08
5.6.130.0100.07318.12
5.6.120.0130.05021.05
5.6.110.0100.08021.00
5.6.100.0130.04721.03
5.6.90.0030.06320.97
5.6.80.0100.07720.54
5.5.350.0270.08320.43
5.5.340.0070.08017.95
5.5.330.0070.08720.07
5.5.320.0200.03720.41
5.5.310.0130.05020.29
5.5.300.0000.09017.96
5.5.290.0000.07017.91
5.5.280.0270.06320.77
5.5.270.0200.04720.79
5.5.260.0000.04320.64
5.5.250.0070.07720.59
5.5.240.0070.07720.18
5.4.450.0100.07019.47
5.4.440.0970.06019.10
5.4.430.0800.05319.12
5.4.420.1300.07719.40
5.4.410.0930.04718.97
5.4.400.0900.04318.91
5.4.390.0730.06019.31
5.4.380.0170.05318.61
5.4.370.0170.03018.53
5.4.360.0100.03718.47
5.4.350.0100.04018.54
5.4.340.0100.03718.46
5.4.320.0130.03318.47
5.4.310.0100.04318.57
5.4.300.0030.04318.41
5.4.290.0100.04018.33
5.4.280.0130.03718.50
5.4.270.0030.04318.59
5.4.260.0100.04018.53
5.4.250.0070.04718.52
5.4.240.0070.04318.57
5.4.230.0030.04718.45
5.4.220.0030.05018.51
5.4.210.0130.03718.55
5.4.200.0100.04716.45
5.4.190.0270.03718.52
5.4.180.0130.04018.56
5.4.170.0100.04718.46
5.4.160.0100.03318.42
5.4.150.0100.04718.44
5.4.140.0100.03316.12
5.4.130.0100.03316.17
5.4.120.0000.04316.20
5.4.110.0170.03016.16
5.4.100.0070.03716.16
5.4.90.0100.03716.22
5.4.80.0130.03016.02
5.4.70.0130.03316.23
5.4.60.0200.03016.11
5.4.50.0130.03016.10
5.4.40.0070.04016.02
5.4.30.0130.03716.13
5.4.20.0070.04015.96
5.4.10.0130.03316.14
5.4.00.0100.03315.66
5.3.290.0030.04314.70
5.3.280.0000.04314.51
5.3.270.0030.04314.52
5.3.260.0070.04014.52
5.3.250.0030.04314.64
5.3.240.0000.04314.52
5.3.230.0170.05014.48
5.3.220.0130.03314.42
5.3.210.0070.05014.58
5.3.200.0000.04314.50
5.3.190.0170.03014.46
5.3.180.0070.03714.50
5.3.170.0130.03014.46
5.3.160.0130.03314.62
5.3.150.0070.04314.57
5.3.140.0070.04014.42
5.3.130.0100.04014.60
5.3.120.0070.04714.40
5.3.110.0100.03714.45
5.3.100.0070.03713.93
5.3.90.0030.04313.87
5.3.80.0070.04013.88
5.3.70.0030.04013.94
5.3.60.0030.04014.03
5.3.50.0070.05313.98
5.3.40.0100.03313.99
5.3.30.0070.03713.84
5.3.20.0070.03713.61
5.3.10.0030.03713.68
5.3.00.0030.03713.56
5.2.170.0000.03711.04
5.2.160.0030.03011.06
5.2.150.0030.03311.04
5.2.140.0030.03011.11
5.2.130.0100.02311.18
5.2.120.0030.03011.07
5.2.110.0130.02311.03
5.2.100.0070.03011.16
5.2.90.0030.04311.20
5.2.80.0100.02711.19
5.2.70.0030.04711.05
5.2.60.0200.02010.97
5.2.50.0200.03310.95
5.2.40.0030.03010.88
5.2.30.0030.03011.07
5.2.20.0070.02711.07
5.2.10.0000.03010.97
5.2.00.0030.03010.84
5.1.60.0070.02010.03
5.1.50.0030.02310.03
5.1.40.0030.03010.01
5.1.30.0030.02710.27
5.1.20.0070.02710.36
5.1.10.0100.02310.03
5.1.00.0000.03010.14
5.0.50.0030.0208.64
5.0.40.0000.0238.37
5.0.30.0030.0308.28
5.0.20.0030.0208.34
5.0.10.0030.0208.29
5.0.00.0070.0378.13
4.4.90.0030.0175.83
4.4.80.0000.0175.80
4.4.70.0000.0175.89
4.4.60.0030.0205.82
4.4.50.0030.0175.84
4.4.40.0030.0275.83
4.4.30.0070.0135.79
4.4.20.0070.0135.86
4.4.10.0070.0135.88
4.4.00.0030.0275.85
4.3.110.0070.0135.76
4.3.100.0070.0135.78
4.3.90.0030.0175.74
4.3.80.0030.0275.73
4.3.70.0070.0135.71
4.3.60.0000.0175.73
4.3.50.0030.0205.73
4.3.40.0070.0205.70
4.3.30.0000.0174.55
4.3.20.0070.0174.45
4.3.10.0030.0174.44
4.3.00.0070.0236.69

preferences:
56.93 ms | 401 KiB | 5 Q