3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['foo']; $aref = &$a; $b = ['bar']; var_dump($a); var_dump($aref); $aref = $b; var_dump($a); var_dump($aref);

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)
8.3.60.0110.00418.18
8.3.50.0110.00821.07
8.3.40.0140.00718.36
8.3.30.0100.00319.05
8.3.20.0040.00420.34
8.3.10.0080.00021.91
8.3.00.0080.00019.43
8.2.180.0120.00616.38
8.2.170.0070.01122.96
8.2.160.0090.00620.39
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.64
8.2.110.0100.00722.30
8.2.100.0120.00017.72
8.2.90.0070.00019.09
8.2.80.0080.00017.97
8.2.70.0000.00817.46
8.2.60.0000.00918.05
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0000.00717.98
8.2.20.0000.00717.68
8.2.10.0050.00217.99
8.2.00.0040.00418.16
8.1.280.0110.00325.92
8.1.270.0040.00420.43
8.1.260.0050.00226.35
8.1.250.0000.00728.09
8.1.240.0060.00323.83
8.1.230.0120.00019.12
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00717.23
8.1.190.0080.00017.41
8.1.180.0060.00318.10
8.1.170.0040.00418.56
8.1.160.0000.00821.86
8.1.150.0040.00418.49
8.1.140.0050.00517.40
8.1.130.0000.00817.80
8.1.120.0000.01017.46
8.1.110.0040.00417.46
8.1.100.0070.00017.39
8.1.90.0040.00417.38
8.1.80.0070.00017.28
8.1.70.0000.00717.25
8.1.60.0000.01017.52
8.1.50.0090.00017.43
8.1.40.0000.00817.49
8.1.30.0040.00417.70
8.1.20.0040.00417.54
8.1.10.0000.00817.41
8.1.00.0040.00417.39
8.0.300.0040.00419.04
8.0.290.0000.00717.05
8.0.280.0040.00418.36
8.0.270.0030.00317.11
8.0.260.0000.00617.23
8.0.250.0030.00316.83
8.0.240.0030.00316.91
8.0.230.0000.01116.87
8.0.220.0000.00716.72
8.0.210.0050.00216.71
8.0.200.0050.00316.88
8.0.190.0050.00316.90
8.0.180.0070.00016.89
8.0.170.0000.00916.88
8.0.160.0000.00716.81
8.0.150.0030.00416.79
8.0.140.0000.00716.76
8.0.130.0030.00313.32
8.0.120.0040.00416.79
8.0.110.0050.00216.69
8.0.100.0050.00316.76
8.0.90.0000.00816.66
8.0.80.0070.00716.74
8.0.70.0040.00416.65
8.0.60.0040.00416.69
8.0.50.0000.00716.88
8.0.30.0090.01117.05
8.0.20.0150.00517.40
8.0.10.0000.00816.73
8.0.00.0080.00816.70
7.4.330.0000.00515.03
7.4.320.0060.00016.49
7.4.300.0060.00016.43
7.4.290.0030.00316.42
7.4.280.0110.00016.48
7.4.270.0000.00716.39
7.4.260.0030.00616.54
7.4.250.0000.00716.36
7.4.240.0040.00416.46
7.4.230.0030.00316.50
7.4.220.0220.00616.58
7.4.210.0070.01016.55
7.4.200.0030.00316.29
7.4.160.0120.00416.47
7.4.150.0130.01017.40
7.4.140.0150.00817.86
7.4.130.0060.01216.38
7.4.120.0100.01016.30
7.4.110.0070.01516.41
7.4.100.0150.00916.63
7.4.90.0100.00716.49
7.4.80.0080.00819.39
7.4.70.0150.00916.50
7.4.60.0070.01016.40
7.4.50.0040.00416.13
7.4.40.0100.00616.22
7.4.30.0090.00616.34
7.4.00.0100.00614.86
7.3.330.0040.00213.13
7.3.320.0000.00513.10
7.3.310.0030.00316.24
7.3.300.0000.00716.24
7.3.290.0070.00916.20
7.3.280.0100.00716.19
7.3.270.0070.01017.40
7.3.260.0050.01116.43
7.3.250.0100.00916.14
7.3.240.0030.01316.30
7.3.230.0150.00416.44
7.3.210.0110.00716.20
7.3.200.0030.01419.39
7.3.190.0050.01116.13
7.3.180.0030.01316.41
7.3.170.0090.00916.27
7.3.160.0100.00616.24
7.3.10.0090.00616.68
7.3.00.0070.00316.34
7.2.330.0030.01416.23
7.2.320.0080.00916.39
7.2.310.0040.01616.46
7.2.300.0120.00616.38
7.2.290.0090.00916.50
7.2.130.0110.00016.24
7.2.120.0080.00416.69
7.2.110.0100.00316.87
7.2.100.0000.01716.59
7.2.90.0060.01216.56
7.2.80.0040.00816.56
7.2.70.0100.00716.47
7.2.60.0070.00716.72
7.2.50.0000.00816.52
7.2.40.0090.00216.52
7.2.30.0130.00316.21
7.2.20.0100.00716.50
7.2.10.0030.00916.33
7.2.00.0060.01117.79
7.1.250.0110.00315.79
7.1.200.0090.00015.81
7.1.100.0040.00818.29
7.1.70.0000.00717.17
7.1.60.0030.01319.86
7.1.50.0100.01316.76
7.1.00.0070.07322.33
7.0.200.0030.00316.49
7.0.60.0170.07719.99
7.0.50.0100.08017.78
7.0.40.0170.06020.04
7.0.30.0230.04320.18
7.0.20.0300.08720.09
7.0.10.0070.07020.13
7.0.00.0070.08020.17
5.6.280.0000.07321.09
5.6.210.0030.04720.55
5.6.200.0100.06018.23
5.6.190.0070.09020.41
5.6.180.0330.07320.60
5.6.170.0170.04320.52
5.6.160.0070.04320.40
5.6.150.0030.05018.22
5.6.140.0030.05018.20
5.6.130.0130.05018.08
5.6.120.0070.07020.95
5.6.110.0070.03720.95
5.6.100.0130.06720.98
5.6.90.0170.06321.01
5.6.80.0030.04320.38
5.5.350.0000.06020.48
5.5.340.0070.07717.98
5.5.330.0000.08320.19
5.5.320.4030.03720.21
5.5.310.0300.07720.29
5.5.300.0100.03317.96
5.5.290.0070.08017.96
5.5.280.0200.07020.84
5.5.270.0100.08720.82
5.5.260.0100.03720.75
5.5.250.0000.04320.45
5.5.240.0070.03720.34
5.4.450.1400.04019.42
5.4.440.0600.05019.45
5.4.430.0130.05019.49
5.4.420.0170.05719.50
5.4.410.0170.04718.94
5.4.400.0070.05718.62
5.4.390.0130.05018.68
5.4.380.0030.06318.65
5.4.370.0100.05018.62
5.4.360.0030.06018.64
5.4.350.0170.05018.53
5.4.340.0070.05718.72
5.4.320.0070.06018.46
5.4.310.0100.05318.74
5.4.300.0070.05718.64
5.4.290.0170.04318.69
5.4.280.0070.05318.50
5.4.270.0200.05018.70
5.4.260.0100.05018.63
5.4.250.0070.05718.65
5.4.240.0070.05318.77
5.4.230.0030.07018.76
5.4.220.0070.06018.78
5.4.210.0130.05018.69
5.4.200.0130.05316.53
5.4.190.0170.04318.48
5.4.180.0230.03718.57
5.4.170.0230.04018.78
5.4.160.0100.05018.47
5.4.150.0200.05318.53
5.4.140.0100.05016.06
5.4.130.0170.05016.22
5.4.120.0030.05316.20
5.4.110.0070.05016.25
5.4.100.0070.05016.36
5.4.90.0170.04316.04
5.4.80.0070.05316.20
5.4.70.0070.05316.14
5.4.60.0030.05316.14
5.4.50.0070.05016.18
5.4.40.0070.07716.16
5.4.30.0170.06016.12
5.4.20.0170.04316.14
5.4.10.0170.04316.21
5.4.00.0070.05015.77
5.3.290.0100.07314.71
5.3.280.0130.05014.59
5.3.270.0130.05014.70
5.3.260.0130.05014.66
5.3.250.0070.05314.66
5.3.240.0100.05014.58
5.3.230.0100.05014.63
5.3.220.0100.05014.48
5.3.210.0030.06314.66
5.3.200.0230.05714.57
5.3.190.0100.07314.53
5.3.180.0230.04714.53
5.3.170.0200.06014.50
5.3.160.0270.03314.48
5.3.150.0170.04314.48
5.3.140.0100.05014.53
5.3.130.0000.06014.61
5.3.120.0070.05714.65
5.3.110.0100.05714.54
5.3.100.0130.05014.13
5.3.90.0130.04714.09
5.3.80.0130.04714.09
5.3.70.0100.05014.00
5.3.60.0030.05713.95
5.3.50.0100.05013.92
5.3.40.0070.07714.02
5.3.30.0200.06313.94
5.3.20.0200.06313.69
5.3.10.0170.04013.55
5.3.00.0230.06313.55
5.2.170.0130.03711.20
5.2.160.0100.06011.05
5.2.150.0130.06011.16
5.2.140.0130.05711.13
5.2.130.0100.04011.25
5.2.120.0100.03711.09
5.2.110.0030.06311.01
5.2.100.0030.04011.14
5.2.90.0170.03011.24
5.2.80.0070.06311.02
5.2.70.0100.04011.15
5.2.60.0070.04311.20
5.2.50.0070.04010.94
5.2.40.0100.04311.02
5.2.30.0100.06010.93
5.2.20.0070.04310.99
5.2.10.0000.04310.98
5.2.00.0130.05710.87
5.1.60.0000.03710.09
5.1.50.0100.0309.95
5.1.40.0070.03310.05
5.1.30.0070.03710.33
5.1.20.0100.04010.34
5.1.10.0200.05010.06
5.1.00.0070.04310.18
5.0.50.0070.0278.67
5.0.40.0100.0278.48
5.0.30.0030.0438.34
5.0.20.0130.0208.38
5.0.10.0100.0238.29
5.0.00.0000.0478.25
4.4.90.0070.0205.85
4.4.80.0030.0235.89
4.4.70.0030.0235.89
4.4.60.0030.0235.92
4.4.50.0030.0235.82
4.4.40.0100.0275.90
4.4.30.0030.0205.95
4.4.20.0030.0206.00
4.4.10.0070.0205.88
4.4.00.0030.0335.93
4.3.110.0070.0235.79
4.3.100.0000.0235.82
4.3.90.0000.0235.84
4.3.80.0000.0435.78
4.3.70.0030.0205.80
4.3.60.0030.0235.80
4.3.50.0070.0205.78
4.3.40.0000.0405.73
4.3.30.0030.0204.56
4.3.20.0030.0234.54
4.3.10.0070.0174.51
4.3.00.0030.01315.60

preferences:
59.35 ms | 401 KiB | 5 Q