3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 24; $o1 = new stdclass($a=8); var_dump($a); // 8 or 24? And, why? var_dump($o1); $o2 = new Datetime($b='now'); var_dump($b); // string "now"

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)
8.3.60.0070.00716.61
8.3.50.0200.00722.12
8.3.40.0040.01118.67
8.3.30.0090.00619.04
8.3.20.0050.00320.04
8.3.10.0080.00023.40
8.3.00.0060.00320.84
8.2.180.0140.00716.63
8.2.170.0090.00922.96
8.2.160.0110.00420.57
8.2.150.0080.00824.18
8.2.140.0060.00324.66
8.2.130.0070.01026.16
8.2.120.0040.00419.48
8.2.110.0100.00021.12
8.2.100.0090.00317.72
8.2.90.0000.00719.23
8.2.80.0030.00517.97
8.2.70.0050.00317.75
8.2.60.0050.00318.04
8.2.50.0060.00318.07
8.2.40.0000.00819.65
8.2.30.0000.00718.27
8.2.20.0040.00417.73
8.2.10.0050.00318.15
8.2.00.0000.00817.73
8.1.280.0110.00725.92
8.1.270.0050.00323.98
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0040.00423.83
8.1.230.0060.00617.95
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0040.00417.35
8.1.190.0000.00817.25
8.1.180.0050.00318.10
8.1.170.0080.00018.48
8.1.160.0030.00321.90
8.1.150.0050.00318.86
8.1.140.0050.00217.48
8.1.130.0030.00317.89
8.1.120.0000.00817.57
8.1.110.0110.00017.47
8.1.100.0030.00517.60
8.1.90.0070.00017.48
8.1.80.0040.00417.58
8.1.70.0000.00717.48
8.1.60.0000.00917.70
8.1.50.0080.00017.63
8.1.40.0000.00717.54
8.1.30.0050.00317.67
8.1.20.0000.00817.67
8.1.10.0000.00817.52
8.1.00.0000.00817.52
8.0.300.0060.00318.77
8.0.290.0040.00416.75
8.0.280.0050.00218.36
8.0.270.0000.00717.32
8.0.260.0040.00417.27
8.0.250.0030.00317.06
8.0.240.0050.00416.96
8.0.230.0040.00417.13
8.0.220.0030.00517.01
8.0.210.0030.00317.03
8.0.200.0020.00517.09
8.0.190.0000.00817.09
8.0.180.0040.00416.97
8.0.170.0040.00416.98
8.0.160.0040.00417.15
8.0.150.0040.00416.93
8.0.140.0040.00717.00
8.0.130.0060.00013.37
8.0.120.0040.00417.01
8.0.110.0040.00417.04
8.0.100.0040.00416.91
8.0.90.0030.00617.04
8.0.80.0100.00617.01
8.0.70.0040.00416.97
8.0.60.0030.00416.93
8.0.50.0070.00016.91
8.0.30.0040.01417.11
8.0.20.0120.01017.40
8.0.10.0050.00217.03
8.0.00.0070.01016.73
7.4.330.0060.00015.02
7.4.320.0030.00316.66
7.4.300.0030.00316.69
7.4.290.0000.00716.53
7.4.280.0080.00016.57
7.4.270.0030.00516.48
7.4.260.0000.00716.58
7.4.250.0040.00416.43
7.4.240.0020.00516.58
7.4.230.0030.00316.70
7.4.220.0150.00716.75
7.4.210.0100.00316.71
7.4.200.0000.00716.70
7.4.160.0100.00716.74
7.4.150.0120.00817.40
7.4.140.0100.00917.86
7.4.130.0120.00716.57
7.4.120.0070.01016.64
7.4.110.0060.01016.55
7.4.100.0060.01316.46
7.4.90.0100.00716.55
7.4.80.0100.01019.39
7.4.70.0140.00316.70
7.4.60.0100.01316.70
7.4.50.0050.00016.77
7.4.40.0120.00316.52
7.4.30.0080.00816.59
7.4.00.0070.00714.80
7.3.330.0060.00013.11
7.3.320.0000.00513.13
7.3.310.0030.00316.34
7.3.300.0070.00016.29
7.3.290.0000.01316.30
7.3.280.0090.00916.28
7.3.270.0100.00717.40
7.3.260.0080.01216.53
7.3.250.0100.00716.42
7.3.240.0100.01416.40
7.3.230.0060.01316.72
7.3.210.0100.01316.48
7.3.200.0120.00419.39
7.3.190.0090.01016.64
7.3.180.0110.00716.33
7.3.170.0060.01316.50
7.3.160.0060.00916.47
7.3.120.0070.00714.98
7.3.10.0060.00616.69
7.3.00.0120.00016.51
7.2.330.0030.01316.79
7.2.320.0070.01216.52
7.2.310.0040.01316.91
7.2.300.0030.01316.45
7.2.290.0070.01016.80
7.2.130.0050.00516.89
7.2.120.0000.01116.82
7.2.110.0060.00316.68
7.2.100.0040.00716.91
7.2.90.0030.00816.99
7.2.80.0060.00317.16
7.2.70.0110.00016.86
7.2.60.0030.01016.87
7.2.50.0000.01216.74
7.2.40.0110.00017.12
7.2.30.0040.00816.85
7.2.20.0060.00916.90
7.2.10.0060.00917.01
7.2.00.0050.00918.26
7.1.250.0060.00915.57
7.1.200.0090.00315.91
7.1.100.0000.01118.17
7.1.70.0000.00817.02
7.1.60.0140.01019.70
7.1.50.0100.01317.09
7.1.00.0100.07022.34
7.0.200.0030.00917.05
7.0.140.0070.07022.10
7.0.60.0030.07019.93
7.0.50.0170.05717.84
7.0.40.0130.04720.40
7.0.30.0400.07320.18
7.0.20.0330.05720.12
7.0.10.0330.05720.13
7.0.00.0000.04320.16
5.6.280.0000.07721.14
5.6.210.0070.09720.60
5.6.200.0100.07018.21
5.6.190.0030.08020.48
5.6.180.0000.08720.59
5.6.170.0370.07320.48
5.6.160.0100.08320.50
5.6.150.0030.07018.07
5.6.140.0030.04018.18
5.6.130.0070.06318.11
5.6.120.0100.08720.96
5.6.110.0100.06320.98
5.6.100.0070.06720.97
5.6.90.0170.07721.07
5.6.80.0000.04320.43
5.6.70.0130.04020.52
5.5.350.0100.07320.39
5.5.340.0070.03717.93
5.5.330.0100.08020.21
5.5.320.0070.07720.24
5.5.310.0230.03320.17
5.5.300.0030.07717.98
5.5.290.0070.08018.02
5.5.280.0070.08720.89
5.5.270.0070.05320.66
5.5.260.0130.05020.67
5.5.250.0030.08320.57
5.5.240.0000.08320.25
5.4.450.0030.04019.46
5.4.440.0070.04319.41
5.4.430.0370.04319.38
5.4.420.0200.04019.42
5.4.410.0200.03319.13
5.4.400.0070.08019.10
5.4.390.0000.03718.92
5.4.380.0100.06719.09
5.4.370.0030.05319.13
5.4.360.0030.06719.08
5.4.350.0000.04018.81
5.4.340.0070.07019.13
5.4.320.0030.08019.13
5.4.310.0000.05019.08
5.4.300.0030.03718.80
5.4.290.0000.04019.25
5.4.280.0030.03719.05
5.4.270.0030.07719.24
5.4.260.0000.04018.88
5.4.250.0070.06019.23
5.4.240.0130.03719.10
5.4.230.0070.03319.15
5.4.220.0000.07318.80
5.4.210.0030.06719.07
5.4.200.0000.03718.91
5.4.190.0100.07318.82
5.4.180.0000.04319.12
5.4.170.0070.06719.07
5.4.160.0070.03718.86
5.4.150.0200.04718.86
5.4.140.0130.04016.32
5.4.130.0030.04316.49
5.4.120.0100.06716.32
5.4.110.0030.04016.49
5.4.100.0270.05316.48
5.4.90.0070.03316.26
5.4.80.0000.04316.40
5.4.70.0100.06716.24
5.4.60.0100.06716.32
5.4.50.0130.06016.45
5.4.40.0000.04016.18
5.4.30.0030.06316.03
5.4.20.0000.05716.38
5.4.10.0130.07316.31
5.4.00.0000.07015.73
5.3.290.0030.03714.50
5.3.280.0130.07314.53
5.3.270.0070.07714.70
5.3.260.0070.07014.55
5.3.250.0230.07314.47
5.3.240.0030.03714.46
5.3.230.0100.06314.44
5.3.220.0070.06314.47
5.3.210.0000.07714.55
5.3.200.0070.07714.51
5.3.190.0070.06314.41
5.3.180.0000.05314.53
5.3.170.0070.07314.39
5.3.160.0000.05014.42
5.3.150.0070.07314.43
5.3.140.0030.07314.40
5.3.130.0030.04314.42
5.3.120.0030.06714.49
5.3.110.0030.05714.38
5.3.100.0130.03713.88
5.3.90.0070.07013.88
5.3.80.0030.07014.00
5.3.70.0030.04713.96
5.3.60.0130.07713.84
5.3.50.0070.06313.88
5.3.40.0900.05713.93
5.3.30.0100.04013.85
5.3.20.0330.03313.52
5.3.10.0130.04013.49
5.3.00.0170.03713.47
5.2.170.0000.04011.09
5.2.160.0000.03311.05
5.2.150.0030.03310.98
5.2.140.0200.05711.15
5.2.130.0230.05310.94
5.2.120.0200.03711.12
5.2.110.0130.05711.04
5.2.100.0170.02311.06
5.2.90.0170.02711.15
5.2.80.0130.06310.95
5.2.70.0170.05711.25
5.2.60.0200.06311.14
5.2.50.0230.04710.86
5.2.40.0170.03711.00
5.2.30.0100.04710.81
5.2.20.0230.05710.79
5.2.10.0200.03010.88
5.2.00.0200.05310.87
5.1.60.0230.04710.30
5.1.50.0170.05010.30
5.1.40.0130.04710.30
5.1.30.0230.03710.33
5.1.20.0200.03010.46
5.1.10.0270.02310.30
5.1.00.0200.02310.30
5.0.50.0070.02710.30
5.0.40.0130.03010.30
5.0.30.0170.05710.30
5.0.20.0100.06010.30
5.0.10.0030.03310.30
5.0.00.0170.04010.30
4.4.90.0030.04710.30
4.4.80.0070.03010.30
4.4.70.0100.03310.30
4.4.60.0100.03710.30
4.4.50.0070.03310.30
4.4.40.0170.05010.30
4.4.30.0170.02710.30
4.4.20.0070.02310.30
4.4.10.0070.02010.30
4.4.00.0170.04310.30
4.3.110.0100.03310.30
4.3.100.0170.02710.30
4.3.90.0130.02710.30
4.3.80.0170.04310.30
4.3.70.0100.02010.30
4.3.60.0100.02010.30
4.3.50.0100.03310.30
4.3.40.0070.02710.30
4.3.30.0030.01710.30
4.3.20.0100.03310.30
4.3.10.0070.01710.30
4.3.00.0100.01310.30

preferences:
46.86 ms | 401 KiB | 5 Q