3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = 'tacocat'; $code = ''; for ($i = strlen($input) - 1; $i >= 0; $i--) { $code .= sprintf('.$input[%s]', $i); } $code .= ';'; var_dump($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)
8.3.60.0030.01716.75
8.3.50.0150.00622.02
8.3.40.0000.01518.84
8.3.30.0170.00319.13
8.3.20.0020.00520.20
8.3.10.0070.00021.76
8.3.00.0060.00317.55
8.2.180.0000.01616.38
8.2.170.0060.00922.96
8.2.160.0070.00719.33
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0130.00020.61
8.2.110.0060.00322.07
8.2.100.0060.00619.51
8.2.90.0080.00019.08
8.2.80.0050.00317.97
8.2.70.0050.00317.38
8.2.60.0050.00317.92
8.2.50.0000.00818.07
8.2.40.0040.00718.03
8.2.30.0050.00218.05
8.2.20.0080.00017.69
8.2.10.0050.00318.11
8.2.00.0040.00417.76
8.1.280.0070.00725.92
8.1.270.0080.00022.14
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0030.00623.98
8.1.230.0090.00318.90
8.1.220.0080.00017.79
8.1.210.0030.00518.77
8.1.200.0030.00617.10
8.1.190.0040.00417.41
8.1.180.0000.00818.64
8.1.170.0030.00518.72
8.1.160.0070.00021.91
8.1.150.0040.00418.83
8.1.140.0070.00017.45
8.1.130.0040.00417.82
8.1.120.0050.00217.32
8.1.110.0000.00817.38
8.1.100.0040.00317.36
8.1.90.0000.00717.35
8.1.80.0000.00717.29
8.1.70.0000.00717.29
8.1.60.0040.00417.40
8.1.50.0000.00817.39
8.1.40.0080.00017.45
8.1.30.0060.00317.63
8.1.20.0040.00417.64
8.1.10.0040.00417.41
8.1.00.0070.00017.42
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0030.00518.41
8.0.270.0030.00317.13
8.0.260.0030.00317.20
8.0.250.0030.00316.90
8.0.240.0000.00716.94
8.0.230.0000.00716.92
8.0.220.0050.00216.87
8.0.210.0000.00716.74
8.0.200.0070.00016.89
8.0.190.0040.00416.84
8.0.180.0050.00216.76
8.0.170.0050.00316.80
8.0.160.0040.00416.73
8.0.150.0000.00716.66
8.0.140.0000.00716.68
8.0.130.0040.00413.21
8.0.120.0070.00016.82
8.0.110.0000.00716.65
8.0.100.0030.00616.68
8.0.90.0050.00216.71
8.0.80.0110.00416.85
8.0.70.0020.00516.89
8.0.60.0000.00816.90
8.0.50.0040.00416.66
8.0.30.0100.00816.88
8.0.20.0140.00817.40
8.0.10.0000.00817.02
8.0.00.0070.01016.67
7.4.330.0050.00015.19
7.4.320.0030.00316.52
7.4.300.0000.00616.54
7.4.290.0030.00316.58
7.4.280.0040.00416.46
7.4.270.0030.00316.51
7.4.260.0000.00716.42
7.4.250.0040.00416.36
7.4.240.0020.00516.50
7.4.230.0000.00716.33
7.4.220.0060.01316.56
7.4.210.0090.01216.39
7.4.200.0050.00216.61
7.4.160.0060.00916.43
7.4.150.0140.00317.40
7.4.140.0130.01017.86
7.4.130.0060.01116.50
7.4.120.0100.00716.55
7.4.110.0190.00016.47
7.4.100.0030.01616.43
7.4.90.0150.00316.41
7.4.80.0060.01219.39
7.4.70.0140.00916.58
7.4.60.0060.00916.41
7.4.50.0040.00416.46
7.4.40.0070.01116.61
7.4.30.0130.00616.54
7.4.00.0030.01014.73
7.3.330.0060.00013.07
7.3.320.0060.00013.21
7.3.310.0070.00016.16
7.3.300.0070.00016.32
7.3.290.0090.00616.31
7.3.280.0050.01216.35
7.3.270.0140.00717.40
7.3.260.0100.00616.71
7.3.250.0140.00716.49
7.3.240.0040.01416.36
7.3.230.0090.01216.39
7.3.210.0130.00716.65
7.3.200.0090.00919.39
7.3.190.0100.00716.42
7.3.180.0090.00616.53
7.3.170.0080.00816.47
7.3.160.0060.01016.59
7.2.330.0120.01216.36
7.2.320.0030.01316.70
7.2.310.0060.00916.31
7.2.300.0100.00616.68
7.2.290.0130.00916.41
7.2.60.0000.01416.80
7.2.00.0040.00819.47
7.1.200.0090.00415.66
7.1.100.0000.01217.66
7.1.70.0000.00717.34
7.1.60.0070.01419.29
7.1.50.0180.00634.89
7.1.00.0030.07722.42
7.0.200.0780.01014.54
7.0.140.0070.07022.21
7.0.60.0170.07719.81
7.0.50.0070.06017.89
7.0.40.0070.08020.39
7.0.30.0170.04720.00
7.0.20.0170.04720.12
7.0.10.0070.07319.99
7.0.00.0070.03720.16
5.6.280.0000.07720.81
5.6.210.0100.07320.65
5.6.200.0030.04318.13
5.6.190.0070.08320.48
5.6.180.0270.08320.41
5.6.170.0270.05020.33
5.6.160.0130.06020.49
5.6.150.0170.06018.16
5.6.140.0030.07718.14
5.6.130.0000.06018.14
5.6.120.0000.09320.98
5.6.110.0130.07321.00
5.6.100.0170.07021.01
5.6.90.0030.04021.07
5.6.80.0070.06320.43
5.5.350.0170.07320.41
5.5.340.0000.04317.97
5.5.330.0070.04320.29
5.5.320.0200.07020.24
5.5.310.0170.04320.17
5.5.300.0030.06317.98
5.5.290.0030.07017.95
5.5.280.0070.04320.84
5.5.270.0030.07020.93
5.5.260.0200.07320.77
5.5.250.0030.04020.68
5.5.240.0170.06320.18
5.4.450.0300.05319.47
5.4.440.0030.06319.63
5.4.430.0100.05319.33
5.4.420.0030.06319.35
5.4.410.0200.05019.35
5.4.400.0000.08018.85
5.4.390.0170.05318.98
5.4.380.0300.06718.72
5.4.370.0070.04318.67
5.4.360.0170.05018.57
5.4.350.0130.06018.48
5.4.340.0100.06718.56
5.4.320.0070.06018.46
5.4.310.0230.05718.41
5.4.300.0330.04018.65
5.4.290.0130.05318.54
5.4.280.0170.04018.47
5.4.270.0070.04718.56
5.4.260.0170.03718.37
5.4.250.0230.04018.56
5.4.240.0130.03718.55
5.4.230.0130.04018.46
5.4.220.0030.05018.64
5.4.210.0170.03718.46
5.4.200.0100.04016.47
5.4.190.0170.03318.29
5.4.180.0070.04018.52
5.4.170.0100.04018.55
5.4.160.0100.03718.52
5.4.150.0070.04318.39
5.4.140.0200.04316.06
5.4.130.0070.05016.14
5.4.120.0130.04016.18
5.4.110.0200.03715.98
5.4.100.0170.04316.14
5.4.90.0170.04316.12
5.4.80.0170.03016.16
5.4.70.0100.04316.14
5.4.60.0200.03016.04
5.4.50.0170.03316.09
5.4.40.0070.04316.09
5.4.30.0200.02716.14
5.4.20.0030.04716.12
5.4.10.0130.04015.98
5.4.00.0030.04315.43
5.3.290.0130.04714.52
5.3.280.0300.04314.48
5.3.270.0030.06714.54
5.3.260.0130.04714.50
5.3.250.0170.04314.65
5.3.240.0100.04014.54
5.3.230.0070.04714.51
5.3.220.0130.03714.45
5.3.210.0200.04014.48
5.3.200.0130.04714.49
5.3.190.0130.04314.50
5.3.180.0170.03314.49
5.3.170.0100.04014.43
5.3.160.0230.03714.50
5.3.150.0100.03714.48
5.3.140.0170.03714.60
5.3.130.0130.05314.41
5.3.120.0070.05014.43
5.3.110.0170.03714.58
5.3.100.0130.03713.95
5.3.90.0170.03713.86
5.3.80.0030.05313.99
5.3.70.0130.04313.90
5.3.60.0070.04014.01
5.3.50.0130.04313.79
5.3.40.0100.04013.98
5.3.30.0130.05313.76
5.3.20.0200.04313.54
5.3.10.0100.04013.63
5.3.00.0100.03713.51
5.2.170.0070.03311.12
5.2.160.0100.03011.07
5.2.150.0170.03711.00
5.2.140.0070.04711.09
5.2.130.0130.03711.09
5.2.120.0130.04010.96
5.2.110.0130.03711.10
5.2.100.0030.04010.99
5.2.90.0100.04311.19
5.2.80.0100.04311.02
5.2.70.0170.03711.18
5.2.60.0030.04311.13
5.2.50.0130.02711.02
5.2.40.0070.03310.96
5.2.30.0130.02310.97
5.2.20.0070.03310.92
5.2.10.0100.03011.01
5.2.00.0100.02710.77
5.1.60.0000.0309.98
5.1.50.0030.0279.96
5.1.40.0070.02710.03
5.1.30.0030.03010.41
5.1.20.0100.02310.39
5.1.10.0170.02710.03
5.1.00.0100.03710.04
5.0.50.0030.0278.66
5.0.40.0100.0278.38
5.0.30.0070.0378.19
5.0.20.0130.0178.27
5.0.10.0070.0238.11
5.0.00.0070.0378.28
4.4.90.0030.0275.84
4.4.80.0030.0275.84
4.4.70.0030.0235.80
4.4.60.0100.0205.98
4.4.50.0070.0335.86
4.4.40.0000.0405.83
4.4.30.0130.0175.93
4.4.20.0100.0205.86
4.4.10.0070.0235.91
4.4.00.0070.0275.84
4.3.110.0100.0135.74
4.3.100.0030.0175.75
4.3.90.0070.0175.75
4.3.80.0030.0335.84
4.3.70.0000.0205.80
4.3.60.0030.0135.73
4.3.50.0030.0175.76
4.3.40.0030.0335.70
4.3.30.0030.0204.48
4.3.20.0000.0204.59
4.3.10.0030.0134.42
4.3.00.0030.0236.71

preferences:
35.83 ms | 401 KiB | 5 Q