3v4l.org

run code in 300+ PHP versions simultaneously
<?php // 7f ef ff ff ff ff ff ff (Max double) // https://en.wikipedia.org/wiki/Double-precision_floating-point_format#Double-precision_examples // 7f = 127 // ef = 239 // ff = 255 $str = chr(127) . chr(239) . ' ' . str_repeat(chr(255) . chr(255) . ' ', 3); echo (string) unpack('d', $str)[1], PHP_EOL;

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)
8.3.60.0110.00318.68
8.3.50.0040.01119.76
8.3.40.0090.00618.96
8.3.30.0160.00018.71
8.3.20.0070.00020.47
8.3.10.0000.00722.08
8.3.00.0040.00419.81
8.2.180.0070.01318.16
8.2.170.0040.01122.96
8.2.160.0130.00620.97
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00419.77
8.2.110.0030.00720.96
8.2.100.0080.00417.84
8.2.90.0000.00817.97
8.2.80.0040.00418.03
8.2.70.0050.00317.63
8.2.60.0030.00617.50
8.2.50.0040.00417.63
8.2.40.0050.00318.05
8.2.30.0040.00419.18
8.2.20.0060.00317.70
8.2.10.0040.00418.04
8.2.00.0040.00418.04
8.1.280.0030.01425.92
8.1.270.0070.00023.81
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0060.00323.84
8.1.230.0110.00021.04
8.1.220.0070.00417.79
8.1.210.0050.00318.77
8.1.200.0000.00917.35
8.1.190.0030.00617.23
8.1.180.0000.00918.10
8.1.170.0000.00817.62
8.1.160.0030.00319.04
8.1.150.0020.00518.82
8.1.140.0000.00819.51
8.1.130.0090.00017.33
8.1.120.0000.00717.45
8.1.110.0000.00817.29
8.1.100.0040.00417.46
8.1.90.0000.00717.43
8.1.80.0040.00417.48
8.1.70.0050.00217.50
8.1.60.0040.00417.48
8.1.50.0040.00417.49
8.1.40.0030.00517.51
8.1.30.0110.00017.67
8.1.20.0000.00717.67
8.1.10.0080.00017.61
8.1.00.0080.00017.39
8.0.300.0000.00719.89
8.0.290.0040.00416.75
8.0.280.0030.00318.45
8.0.270.0030.00316.82
8.0.260.0030.00316.82
8.0.250.0060.00016.98
8.0.240.0070.00016.96
8.0.230.0030.00416.95
8.0.220.0030.00316.83
8.0.210.0030.00516.77
8.0.200.0060.00016.93
8.0.190.0030.00616.89
8.0.180.0000.00716.89
8.0.170.0040.00416.89
8.0.160.0030.00616.90
8.0.150.0040.00416.76
8.0.140.0000.00816.72
8.0.130.0060.00013.39
8.0.120.0040.00416.77
8.0.110.0040.00416.64
8.0.100.0030.00416.85
8.0.90.0080.00016.63
8.0.80.0000.02316.78
8.0.70.0080.00016.71
8.0.60.0000.00816.78
8.0.50.0040.00416.72
8.0.30.0090.00816.85
8.0.20.0110.00817.40
8.0.10.0000.00816.88
8.0.00.0170.00016.70
7.4.330.0020.00215.08
7.4.320.0030.00316.58
7.4.300.0070.00016.54
7.4.290.0030.00316.45
7.4.280.0050.00316.55
7.4.270.0000.00816.61
7.4.260.0030.00316.36
7.4.250.0040.00416.45
7.4.240.0070.00016.46
7.4.230.0000.00716.70
7.4.220.0030.01516.56
7.4.210.0100.01016.48
7.4.200.0000.00716.70
7.4.160.0080.00816.51
7.4.150.0130.00617.40
7.4.140.0140.00317.86
7.4.130.0130.00816.55
7.4.120.0060.01016.62
7.4.110.0150.00416.38
7.4.100.0040.01416.46
7.4.90.0060.01116.42
7.4.80.0190.00619.39
7.4.70.0100.00716.63
7.4.60.0060.01016.45
7.4.50.0090.00916.45
7.4.40.0110.00516.56
7.4.30.0150.00016.49
7.4.00.0110.00414.88
7.3.330.0000.00513.10
7.3.320.0050.00013.09
7.3.310.0070.00016.18
7.3.300.0060.00016.26
7.3.290.0050.01116.28
7.3.280.0110.00716.28
7.3.270.0070.01017.40
7.3.260.0220.01016.29
7.3.250.0100.00816.45
7.3.240.0120.00516.20
7.3.230.0110.00516.39
7.3.210.0130.00616.36
7.3.200.0140.00316.43
7.3.190.0030.01316.37
7.3.180.0110.00716.48
7.3.170.0120.00816.32
7.3.160.0040.01316.36
7.2.330.0110.00816.47
7.2.320.0060.00916.48
7.2.310.0090.01116.49
7.2.300.0110.00716.59
7.2.290.0110.00516.66
7.2.60.0070.00716.81
7.2.00.0000.00919.28
7.1.200.0000.01115.62
7.1.100.0130.00017.86
7.1.70.0000.00816.89
7.1.60.0000.01419.87
7.1.00.0100.07022.48
7.0.200.0240.00314.88
7.0.70.0670.05319.93
7.0.60.0570.05319.98
7.0.50.0330.06720.29
7.0.40.0330.05320.34
7.0.30.0400.05020.23
7.0.20.0370.04720.29
7.0.10.0170.06720.34
7.0.00.0430.05720.31
5.6.280.0030.07021.04
5.6.220.0470.05020.67
5.6.210.0570.08020.67
5.6.200.0300.07021.06
5.6.190.0370.05321.11
5.6.180.0200.06021.01
5.6.170.0200.06321.10
5.6.160.0300.05321.08
5.6.150.0270.06721.11
5.6.140.0300.04721.10
5.6.130.0370.05321.10
5.6.120.0230.06721.07
5.6.110.0270.06020.93
5.6.100.0370.07721.11
5.6.90.0300.06720.96
5.6.80.0170.06720.53
5.6.70.0300.06020.52
5.6.60.0200.05020.42
5.6.50.0330.05020.49
5.6.40.0270.05320.53
5.6.30.0430.07020.48
5.6.20.0500.06320.41
5.6.10.0230.06020.41
5.6.00.0370.05020.40
5.5.360.0430.06320.41
5.5.350.0100.06720.45
5.5.340.0330.06020.93
5.5.330.3970.05720.76
5.5.320.0230.05720.93
5.5.310.0200.06020.92
5.5.300.0200.06320.75
5.5.290.0200.06720.75
5.5.280.0070.07020.84
5.5.270.0300.08720.88
5.5.260.0400.08020.86
5.5.250.0330.07720.45
5.5.240.0270.06020.22
5.5.230.0400.04720.15
5.5.220.0100.06720.24
5.5.210.0270.05720.27
5.5.200.0330.05020.22
5.5.190.0200.07020.27
5.5.180.0400.05320.20
5.5.160.0230.06020.19
5.5.150.0370.05020.02
5.5.140.0270.06020.18
5.5.130.0170.06020.20
5.5.120.0300.04720.27
5.5.110.0430.04320.25
5.5.100.0300.06020.21
5.5.90.0330.07020.18
5.5.80.0330.06720.06
5.5.70.0330.07319.74
5.5.60.0330.07020.18
5.5.50.0330.07320.15
5.5.40.0200.07020.03
5.5.30.0270.05020.18
5.5.20.0200.06320.11
5.5.10.0300.07320.05
5.5.00.0370.07020.09

preferences:
51.12 ms | 401 KiB | 5 Q