3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1, 2, 3]; function foo(&$a) { $b = $a; $a[] = count($a) + 1; return $b; } var_dump( foo($a), // return value is *before* $a // after );

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)
8.4.120.0120.00820.66
8.4.110.0100.00920.78
8.4.100.0060.00417.85
8.4.90.0110.00922.47
8.4.80.0030.00620.59
8.4.70.0060.00319.08
8.4.60.0050.00422.57
8.4.50.0060.00222.23
8.4.40.0090.00919.28
8.4.30.0130.00717.60
8.4.20.0000.01518.72
8.4.10.0030.00617.53
8.3.250.0070.00918.91
8.3.240.0100.00916.68
8.3.230.0120.00716.66
8.3.220.0120.00620.70
8.3.210.0130.00716.51
8.3.200.0040.00516.60
8.3.190.0120.00818.92
8.3.180.0050.00319.12
8.3.170.0110.00717.22
8.3.160.0150.00416.68
8.3.150.0080.01116.72
8.3.140.0050.00318.75
8.3.130.0080.00016.51
8.3.120.0110.00718.93
8.3.110.0040.00420.94
8.3.100.0080.00016.40
8.3.90.0110.00426.77
8.3.80.0110.00016.75
8.3.70.0060.01116.58
8.3.60.0070.01418.43
8.3.50.0140.00722.17
8.3.40.0040.01118.71
8.3.30.0100.00318.63
8.3.20.0000.00818.73
8.3.10.0040.00421.97
8.3.00.0050.00320.94
8.2.290.0150.00517.28
8.2.280.0130.00718.76
8.2.270.0120.00816.84
8.2.260.0040.00416.95
8.2.250.0070.00016.43
8.2.240.0050.00319.06
8.2.230.0130.00622.58
8.2.220.0000.00824.06
8.2.210.0110.00726.77
8.2.200.0030.00616.50
8.2.190.0090.00916.58
8.2.180.0120.00325.92
8.2.170.0090.00618.71
8.2.160.0110.00322.96
8.2.150.0040.00424.18
8.2.140.0000.00924.66
8.2.130.0040.00426.16
8.2.120.0020.00220.82
8.2.110.0070.00322.20
8.2.100.0040.00817.66
8.2.90.0000.00822.17
8.2.80.0000.00917.97
8.2.70.0040.00417.90
8.2.60.0000.00818.04
8.2.50.0000.00918.10
8.2.40.0040.00420.42
8.2.30.0080.00021.09
8.2.20.0000.00718.00
8.2.10.0000.00718.06
8.2.00.0000.00817.65
8.1.330.0140.00516.24
8.1.320.0100.00821.96
8.1.310.0040.01416.49
8.1.300.0090.00618.00
8.1.290.0090.00030.84
8.1.280.0110.00425.92
8.1.270.0000.00821.91
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0000.01022.62
8.1.230.0080.00420.93
8.1.220.0000.00917.78
8.1.210.0030.00519.00
8.1.200.0000.00917.35
8.1.190.0030.00617.23
8.1.180.0020.00518.10
8.1.170.0040.00418.67
8.1.160.0000.00818.93
8.1.150.0070.00020.26
8.1.140.0050.00319.48
8.1.130.0060.00319.48
8.1.120.0000.00717.47
8.1.110.0070.00017.43
8.1.100.0050.00217.38
8.1.90.0000.00717.46
8.1.80.0020.00517.46
8.1.70.0000.00717.36
8.1.60.0000.00817.57
8.1.50.0000.00717.54
8.1.40.0050.00317.36
8.1.30.0050.00317.64
8.1.20.0050.00317.58
8.1.10.0030.00617.38
8.1.00.0040.00417.37
8.0.300.0050.00519.94
8.0.290.0050.00316.63
8.0.280.0070.00018.39
8.0.270.0060.00317.20
8.0.260.0070.00017.23
8.0.250.0030.00316.92
8.0.240.0040.00416.76
8.0.230.0000.00816.83
8.0.220.0000.00716.82
8.0.210.0000.00716.75
8.0.200.0030.00316.78
8.0.190.0060.00316.89
8.0.180.0080.00016.84
8.0.170.0030.00316.91
8.0.160.0030.00416.81
8.0.150.0000.00716.90
8.0.140.0080.00016.75
8.0.130.0040.00413.31
8.0.120.0050.00516.78
8.0.110.0040.00416.86
8.0.100.0040.00416.71
8.0.90.0020.00516.78
8.0.80.0080.00816.88
8.0.70.0070.00017.01
8.0.60.0000.00716.69
8.0.50.0030.00316.76
8.0.30.0120.00517.05
8.0.20.0070.01217.40
8.0.10.0040.00416.82
8.0.00.0030.01416.66
7.4.330.0060.00015.55
7.4.320.0000.00716.52
7.4.300.0000.00616.61
7.4.290.0040.00416.61
7.4.280.0050.00516.61
7.4.270.0030.00316.65
7.4.260.0030.00316.61
7.4.250.0030.00616.36
7.4.240.0000.00716.52
7.4.230.0070.00016.48
7.4.220.0090.00916.46
7.4.210.0070.01016.58
7.4.200.0070.00016.41
7.4.160.0120.00616.48
7.4.150.0150.00617.40
7.4.140.0140.00517.86
7.4.130.0090.00816.43
7.4.120.0120.00616.59
7.4.110.0030.01316.47
7.4.100.0060.01316.46
7.4.90.0100.01016.40
7.4.80.0080.00919.39
7.4.70.0180.00616.46
7.4.60.0140.00416.56
7.4.50.0070.00716.52
7.4.40.0120.00316.46
7.4.30.0090.00916.52
7.4.00.0000.01714.84
7.3.330.0020.00213.23
7.3.320.0030.00313.15
7.3.310.0030.00316.38
7.3.300.0000.00716.38
7.3.290.0060.00916.35
7.3.280.0100.00916.34
7.3.270.0000.01717.40
7.3.260.0100.01116.48
7.3.250.0090.00816.55
7.3.240.0120.00916.51
7.3.230.0080.00816.39
7.3.210.0110.00716.36
7.3.200.0080.01116.38
7.3.190.0060.01216.46
7.3.180.0030.01316.42
7.3.170.0070.00916.45
7.3.160.0110.01116.42
7.3.10.0090.00616.30
7.3.00.0030.00616.01
7.2.330.0090.00916.75
7.2.320.0150.00316.68
7.2.310.0120.00916.54
7.2.300.0090.01116.69
7.2.290.0120.00616.44
7.2.130.0070.00316.61
7.2.120.0060.00616.93
7.2.110.0120.00616.52
7.2.100.0100.00316.52
7.2.90.0070.01016.65
7.2.80.0090.00616.65
7.2.70.0040.01116.59
7.2.60.0070.01016.64
7.2.50.0030.01016.43
7.2.40.0000.01416.66
7.2.30.0100.00716.78
7.2.20.0070.00716.68
7.2.10.0100.00616.72
7.2.00.0030.00516.79
7.1.250.0110.00715.32
7.1.200.0030.01015.84
7.1.70.0040.01217.01
7.1.60.0040.00817.35
7.1.00.0530.05720.81
7.0.200.0000.01016.93
7.0.140.0700.07320.34
7.0.130.0800.06720.34
7.0.120.0770.07020.13
7.0.110.0470.06320.20
7.0.100.0430.06320.16
7.0.90.0500.07020.24
7.0.80.0770.08020.32
7.0.70.0870.06020.32
7.0.60.0730.07720.26
7.0.50.0970.08020.18
7.0.40.0600.06020.23
7.0.30.0630.06320.38
7.0.20.0870.07020.33
7.0.10.0770.08020.19
7.0.00.2030.08020.31
5.6.290.0130.08020.74
5.6.280.0230.07021.07
5.6.270.0100.08321.10
5.6.260.0200.06721.07
5.6.250.0000.07021.09
5.6.240.0130.07720.82
5.6.230.0070.06720.74
5.6.220.0100.08321.11
5.6.210.0100.07020.96
5.6.200.0230.08021.05
5.6.190.0030.09720.88
5.6.180.0100.07020.89
5.6.170.0170.06320.92
5.6.160.0070.08020.92
5.6.150.0130.07720.85
5.6.140.0170.07320.99
5.6.130.0100.08721.05
5.6.120.0070.08021.01
5.6.110.0130.07020.85
5.6.100.0070.06320.98
5.6.90.0270.04721.01
5.6.80.0070.06320.41
5.6.70.0000.08020.22
5.6.60.0170.05320.21
5.6.50.0170.06720.38
5.6.40.0130.07020.23
5.6.30.0070.07320.42
5.6.20.0170.05720.21
5.6.10.0130.07720.40
5.6.00.0130.07320.22

preferences:
28.07 ms | 403 KiB | 5 Q