3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { public function __construct(&$x){ ++$x; echo "You sent me $b\n"; } } $a = 8; $b = &$a; $o = new Test($b); var_dump($b == $GLOBALS['b']);

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)
8.3.60.0100.01018.31
8.3.50.0080.00721.20
8.3.40.0100.00718.66
8.3.30.0090.00619.95
8.3.20.0050.00320.21
8.3.10.0000.00822.14
8.3.00.0000.00822.39
8.2.180.0150.00616.50
8.2.170.0080.00822.96
8.2.160.0100.00722.22
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0030.00620.65
8.2.110.0030.00620.56
8.2.100.0080.00317.91
8.2.90.0000.00719.14
8.2.80.0030.00619.27
8.2.70.0060.00317.63
8.2.60.0030.00517.68
8.2.50.0050.00518.07
8.2.40.0000.00818.34
8.2.30.0000.00719.41
8.2.20.0000.00717.77
8.2.10.0040.00417.67
8.2.00.0030.00717.79
8.1.280.0140.01025.92
8.1.270.0080.00023.99
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0090.00022.66
8.1.230.0040.00720.90
8.1.220.0040.00418.77
8.1.210.0030.00720.75
8.1.200.0050.00517.23
8.1.190.0050.00317.54
8.1.180.0060.00318.10
8.1.170.0040.00418.51
8.1.160.0000.00918.88
8.1.150.0000.00718.50
8.1.140.0050.00317.44
8.1.130.0030.00317.76
8.1.120.0030.00517.30
8.1.110.0110.00017.43
8.1.100.0040.00417.43
8.1.90.0060.00317.34
8.1.80.0040.00417.40
8.1.70.0040.00417.44
8.1.60.0090.00017.54
8.1.50.0070.00417.54
8.1.40.0040.00417.41
8.1.30.0040.00417.59
8.1.20.0060.00317.53
8.1.10.0060.00317.60
8.1.00.0040.00417.36
8.0.300.0060.00319.95
8.0.290.0040.00417.15
8.0.280.0000.00818.54
8.0.270.0070.00017.13
8.0.260.0000.00816.88
8.0.250.0000.00717.00
8.0.240.0060.00317.06
8.0.230.0000.00816.89
8.0.220.0040.00416.85
8.0.210.0070.00016.84
8.0.200.0000.00616.89
8.0.190.0070.00417.01
8.0.180.0040.00416.98
8.0.170.0040.00417.03
8.0.160.0030.00516.91
8.0.150.0040.00416.80
8.0.140.0040.00716.94
8.0.130.0000.00513.37
8.0.120.0040.00416.95
8.0.110.0070.00016.92
8.0.100.0040.00417.00
8.0.90.0000.00716.74
8.0.80.0000.01616.88
8.0.70.0040.00416.82
8.0.60.0050.00316.79
8.0.50.0040.00416.86
8.0.30.0080.01017.08
8.0.20.0070.01417.40
8.0.10.0000.00717.05
8.0.00.0110.00716.78
7.4.330.0000.00414.92
7.4.320.0030.00316.51
7.4.300.0070.00016.48
7.4.290.0080.00016.51
7.4.280.0030.00316.48
7.4.270.0000.00716.43
7.4.260.0000.00513.38
7.4.250.0030.00516.36
7.4.240.0020.00516.54
7.4.230.0030.00316.38
7.4.220.0150.00616.60
7.4.210.0080.00616.54
7.4.200.0000.00816.62
7.4.190.0040.00416.35
7.4.160.0060.00916.56
7.4.150.0100.00717.40
7.4.140.0100.00817.86
7.4.130.0060.01016.52
7.4.120.0090.00816.59
7.4.110.0070.01016.44
7.4.100.0080.00816.46
7.4.90.0030.01516.51
7.4.80.0100.00719.39
7.4.70.0070.01116.50
7.4.60.0060.00916.46
7.4.50.0060.00316.52
7.4.40.0030.01122.77
7.4.30.0130.00616.60
7.4.00.0040.00814.83
7.3.330.0050.00013.37
7.3.320.0070.00013.27
7.3.310.0000.00716.41
7.3.300.0030.00316.29
7.3.290.0030.01116.45
7.3.280.0050.00916.43
7.3.270.0120.00617.40
7.3.260.0180.00016.45
7.3.250.0060.01216.55
7.3.240.0100.00716.52
7.3.230.0100.00616.47
7.3.210.0140.00516.65
7.3.200.0120.00419.39
7.3.190.0120.00916.55
7.3.180.0100.00716.32
7.3.170.0100.00616.63
7.3.160.0100.00716.67
7.3.120.0060.00614.93
7.2.330.0030.01316.46
7.2.320.0030.01416.87
7.2.310.0100.00716.82
7.2.300.0100.00716.53
7.2.290.0060.01216.53
7.2.60.0090.00616.73
7.2.00.0030.01219.17
7.1.200.0120.00015.65
7.1.100.0140.00418.06
7.1.70.0000.00917.09
7.1.60.0070.00717.31
7.1.50.0040.01817.14
7.1.00.0000.03722.57
7.0.200.0070.01016.77
7.0.140.0030.07721.98
7.0.80.0530.08019.89
7.0.70.0670.07719.96
7.0.60.0700.05720.07
7.0.50.0600.05720.21
7.0.40.0130.07720.08
7.0.30.0130.07320.07
7.0.20.0130.07720.13
7.0.10.0100.08020.09
7.0.00.0030.05020.12
5.6.280.0030.07321.10
5.6.230.0070.06020.63
5.6.220.0000.08320.49
5.6.210.0030.08720.66
5.6.200.0100.05021.09
5.6.190.0170.06321.11
5.6.180.0170.04321.14
5.6.170.0130.07321.12
5.6.160.0030.05021.12
5.6.150.0000.06021.01
5.6.140.0070.08021.02
5.6.130.0070.05021.04
5.6.120.0030.08321.04
5.6.110.0170.07721.01
5.6.100.0200.06720.96
5.6.90.0200.05021.04
5.6.80.0000.06720.55
5.6.70.0070.06720.46
5.6.60.0100.05720.53
5.6.50.0100.08020.38
5.6.40.0070.08320.36
5.6.30.0100.07720.37
5.6.20.0070.07320.31
5.6.10.0070.04020.31
5.6.00.0130.07320.36
5.5.370.0000.05320.57
5.5.360.0130.07320.36
5.5.350.0030.08020.46
5.5.340.0000.05320.84
5.5.330.0100.04320.64
5.5.320.0170.07020.63
5.5.310.0030.08320.75
5.5.300.0070.07020.93
5.5.290.0030.08720.87
5.5.280.0100.07020.79
5.5.270.0100.05320.75
5.5.260.0100.08720.77
5.5.250.0070.08320.54
5.5.240.0030.07720.19
5.5.230.0030.07720.20
5.5.220.0100.08020.02
5.5.210.0130.06720.18
5.5.200.0100.07319.98
5.5.190.0070.05020.08
5.5.180.0030.08320.24
5.5.160.0130.07320.11
5.5.150.0100.07020.25
5.5.140.0070.08020.12
5.5.130.0130.04020.24
5.5.120.0070.05020.18
5.5.110.0130.07020.21
5.5.100.0170.05720.07
5.5.90.0170.07320.04
5.5.80.0100.06720.09
5.5.70.0130.03320.05
5.5.60.0100.07020.15
5.5.50.0070.08319.94
5.5.40.0030.04320.16
5.5.30.0030.08320.09
5.5.20.0100.06320.08
5.5.10.0070.08720.13
5.5.00.0070.05720.04
5.4.450.0070.08019.43
5.4.440.0100.08019.45
5.4.430.0100.06319.57
5.4.420.0130.07719.35
5.4.410.0100.07719.24
5.4.400.0000.06018.95
5.4.390.0100.06019.12
5.4.380.0070.04019.23
5.4.370.0130.07718.91
5.4.360.0070.05718.88
5.4.350.0130.07319.13
5.4.340.0100.05019.24
5.4.320.0130.06019.04
5.4.310.0070.07719.18
5.4.300.0070.07319.18
5.4.290.0070.05019.14
5.4.280.0100.06019.12
5.4.270.0130.07319.02
5.4.260.0030.07719.20
5.4.250.0070.07319.20
5.4.240.0070.07018.89
5.4.230.0000.08318.94
5.4.220.0030.04018.89
5.4.210.0070.07319.02
5.4.200.0070.05019.04
5.4.190.0070.05319.11
5.4.180.0070.08018.89
5.4.170.0030.04719.11
5.4.160.0100.03019.02
5.4.150.0030.04319.02
5.4.140.0000.04016.43
5.4.130.0000.04316.45
5.4.120.0070.03016.24
5.4.110.0000.04016.34
5.4.100.0000.04316.53
5.4.90.0100.03016.44
5.4.80.0000.03316.30
5.4.70.0000.03716.49
5.4.60.0070.03316.45
5.4.50.0000.03716.48
5.4.40.0070.03716.46
5.4.30.0070.05016.41
5.4.20.0070.05316.46
5.4.10.0030.03716.36
5.4.00.0030.03315.74
5.3.290.0030.05314.59
5.3.280.0100.05014.73
5.3.270.0100.06014.53
5.3.260.0070.07014.70
5.3.250.0000.03714.55
5.3.240.0030.04014.58
5.3.230.0070.03314.68
5.3.220.0070.03014.65
5.3.210.0100.03014.61
5.3.200.0100.03314.51
5.3.190.0030.03314.52
5.3.180.0030.03714.63
5.3.170.0000.08314.59
5.3.160.0000.04014.48
5.3.150.0000.04014.56
5.3.140.0030.06014.61
5.3.130.0030.04014.65
5.3.120.0070.03014.68
5.3.110.0100.03014.57
5.3.100.0030.03714.17
5.3.90.0030.03314.12
5.3.80.0100.05714.15
5.3.70.0070.07314.04
5.3.60.0030.03714.06
5.3.50.0030.03713.85
5.3.40.0030.07013.95
5.3.30.0030.03313.83
5.3.20.0070.03013.74
5.3.10.0070.06713.63
5.3.00.0000.03713.61
5.2.170.0000.03011.88
5.2.160.0000.03011.88
5.2.150.0030.03011.88
5.2.140.0000.03311.88
5.2.130.0030.02711.88
5.2.120.0030.03011.88
5.2.110.0030.02711.88
5.2.100.0030.03011.88
5.2.90.0030.04011.88
5.2.80.0000.05311.88
5.2.70.0030.03011.88
5.2.60.0030.02311.88
5.2.50.0030.04711.88
5.2.40.0000.03711.88
5.2.30.0070.03711.88
5.2.20.0070.03711.88
5.2.10.0030.02711.88
5.2.00.0030.02711.88
5.1.60.0000.02711.88
5.1.50.0000.02311.88
5.1.40.0030.05011.88
5.1.30.0000.04711.88
5.1.20.0000.02311.88
5.1.10.0070.02711.88
5.1.00.0030.02711.88
5.0.50.0000.03711.88
5.0.40.0000.02011.88
5.0.30.0000.03311.88
5.0.20.0000.02011.88
5.0.10.0030.02011.88
5.0.00.0070.02311.88
4.4.90.0000.01711.88
4.4.80.0030.03711.88
4.4.70.0000.01711.88
4.4.60.0030.01011.88
4.4.50.0000.01711.88
4.4.40.0000.02711.88
4.4.30.0030.01311.88
4.4.20.0030.01011.88
4.4.10.0030.01311.88
4.4.00.0000.02311.88
4.3.110.0000.01711.88
4.3.100.0030.01311.88
4.3.90.0000.01311.88
4.3.80.0000.02311.88
4.3.70.0000.03011.88
4.3.60.0000.01311.88
4.3.50.0000.01711.88
4.3.40.0070.04011.88
4.3.30.0000.03711.88
4.3.20.0000.02311.88
4.3.10.0000.02711.88
4.3.00.0030.03011.88

preferences:
39.59 ms | 401 KiB | 5 Q