3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new stdClass(); $tmp = (array) $a; if ($a == null) { echo "null"; print_r($a); } else if (empty($a)){ echo "empty"; print_r($a); }else if (!isset($a)){ echo "set"; print_r($a); } else if (empty($tmp)) { echo "var_dump = true"; }

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)
8.3.40.0080.00818.70
8.3.30.0120.00319.01
8.3.20.0120.00320.16
8.3.10.0080.00021.92
8.3.00.0090.00022.57
8.2.170.0140.00722.96
8.2.160.0110.00420.95
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0130.00626.16
8.2.120.0090.00019.36
8.2.110.0000.00919.28
8.2.100.0090.00318.09
8.2.90.0040.00419.26
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0050.00517.79
8.2.50.0040.00418.10
8.2.40.0030.00620.30
8.2.30.0030.00518.05
8.2.20.0030.00617.52
8.2.10.0030.00617.59
8.2.00.0030.00617.68
8.1.270.0030.00622.09
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.57
8.1.230.0080.00320.30
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0080.00017.23
8.1.180.0050.00318.10
8.1.170.0040.00418.51
8.1.160.0000.00822.18
8.1.150.0030.00618.63
8.1.140.0000.00717.54
8.1.130.0000.00817.88
8.1.120.0000.01017.45
8.1.110.0080.00017.35
8.1.100.0000.00817.36
8.1.90.0070.00017.34
8.1.80.0000.00717.45
8.1.70.0040.00417.33
8.1.60.0030.00617.46
8.1.50.0040.00417.51
8.1.40.0040.00417.39
8.1.30.0040.00417.62
8.1.20.0030.00617.60
8.1.10.0050.00217.41
8.1.00.0040.00417.46
8.0.300.0070.00018.77
8.0.290.0000.00716.75
8.0.280.0040.00418.44
8.0.270.0000.00717.24
8.0.260.0040.00416.87
8.0.250.0000.00716.92
8.0.240.0000.00716.95
8.0.230.0000.00716.97
8.0.220.0000.00716.79
8.0.210.0070.00016.80
8.0.200.0000.00617.00
8.0.190.0040.00416.96
8.0.180.0070.00416.93
8.0.170.0040.00416.91
8.0.160.0050.00316.89
8.0.150.0080.00016.75
8.0.140.0050.00216.75
8.0.130.0000.00613.37
8.0.120.0040.00416.77
8.0.110.0000.00716.79
8.0.100.0050.00216.90
8.0.90.0000.00716.78
8.0.80.0150.00016.93
8.0.70.0000.00716.87
8.0.60.0030.00316.73
8.0.50.0030.00516.86
8.0.30.0110.00817.04
8.0.20.0110.00917.40
8.0.10.0000.00716.78
8.0.00.0090.00916.79
7.4.330.0000.00515.15
7.4.320.0000.00616.57
7.4.300.0030.00316.59
7.4.290.0030.00316.50
7.4.280.0000.00716.47
7.4.270.0000.00716.50
7.4.260.0030.00616.58
7.4.250.0040.00416.45
7.4.240.0050.00216.57
7.4.230.0000.00716.61
7.4.220.0090.01016.70
7.4.210.0060.01016.64
7.4.200.0000.00716.41
7.4.190.0040.00416.65
7.4.160.0060.00916.57
7.4.150.0070.01217.40
7.4.140.0090.00917.86
7.4.130.0130.00616.54
7.4.120.0110.00816.53
7.4.110.0090.00916.45
7.4.100.0070.01016.55
7.4.90.0160.00716.44
7.4.80.0110.00719.39
7.4.70.0070.01016.51
7.4.60.0120.00316.38
7.4.50.0050.00316.56
7.4.40.0060.00922.77
7.4.30.0100.00716.48
7.4.00.0070.01014.80
7.3.330.0060.00013.00
7.3.320.0040.00413.06
7.3.310.0050.00216.25
7.3.300.0030.00316.21
7.3.290.0070.01116.17
7.3.280.0110.00416.24
7.3.270.0080.01217.40
7.3.260.0150.00416.48
7.3.250.0140.00716.36
7.3.240.0120.00916.38
7.3.230.0060.01216.44
7.3.210.0040.01316.32
7.3.200.0060.01519.39
7.3.190.0110.01116.40
7.3.180.0090.00616.21
7.3.170.0030.01316.27
7.3.160.0120.00916.48
7.3.120.0030.01015.02
7.2.330.0070.01116.29
7.2.320.0120.00616.52
7.2.310.0060.01016.64
7.2.300.0080.01216.73
7.2.290.0090.01216.54
7.2.00.0080.00319.52
7.1.100.0060.00617.99
7.1.70.0070.00016.74
7.1.60.0060.01819.82
7.1.50.0080.01516.86
7.1.00.0030.07722.44
7.0.200.0070.01016.29
7.0.140.0030.07322.15
7.0.60.0030.08719.93
7.0.50.0170.07317.66
7.0.40.0100.09020.09
7.0.30.0230.03720.13
7.0.20.0300.07720.18
7.0.10.0000.09020.09
7.0.00.0100.04320.17
5.6.280.0100.06020.89
5.6.210.0030.06720.64
5.6.200.0130.05018.22
5.6.190.0100.06720.45
5.6.180.0200.04020.39
5.6.170.0270.05320.50
5.6.160.0100.07320.52
5.6.150.0070.07718.21
5.6.140.0070.04018.21
5.6.130.0030.05318.21
5.6.120.0070.07721.01
5.6.110.0100.08320.97
5.6.100.0230.07020.98
5.6.90.0070.08021.03
5.6.80.0000.04320.39
5.5.350.0100.07720.41
5.5.340.0100.07017.92
5.5.330.0030.09720.29
5.5.320.0270.03720.41
5.5.310.0170.08020.41
5.5.300.0030.05017.96
5.5.290.0070.08017.98
5.5.280.0100.05020.76
5.5.270.0000.04720.86
5.5.260.0030.06020.79
5.5.250.0000.04320.58
5.5.240.0200.04720.14
5.4.450.0470.06719.26
5.4.440.0730.04019.38
5.4.430.0200.03719.41
5.4.420.1200.03019.45
5.4.410.0430.04719.27
5.4.400.0370.03019.13
5.4.390.0400.04319.13
5.4.380.0400.05018.56
5.4.370.0170.06018.50
5.4.360.0500.04018.59
5.4.350.0400.04718.46
5.4.340.0330.04718.46
5.4.320.0050.03612.46
5.4.310.0060.03612.45
5.4.300.0040.03712.46
5.4.290.0040.03912.45
5.4.280.0070.03312.35
5.4.270.0130.04718.80
5.4.260.0070.05019.02
5.4.250.0030.05718.98
5.4.240.0100.05018.86
5.4.230.0100.05018.75
5.4.220.0070.05318.85
5.4.210.0200.03718.79
5.4.200.0070.05018.71
5.4.190.0130.04319.01
5.4.180.0070.05318.93
5.4.170.0130.07018.66
5.4.160.0070.05019.00
5.4.150.0200.04018.86
5.4.140.0030.05716.45
5.4.130.0100.04716.23
5.4.120.0200.03716.21
5.4.110.0070.06316.29
5.4.100.0100.06016.31
5.4.90.0100.05716.34
5.4.80.0100.06316.21
5.4.70.0100.04716.46
5.4.60.0100.04716.33
5.4.50.0030.05016.28
5.4.40.0000.05716.37
5.4.30.0100.06016.37
5.4.20.0130.05716.37
5.4.10.0100.05016.40
5.4.00.0030.05715.71
5.3.290.0040.04412.80
5.3.280.0070.06314.59
5.3.270.0100.05014.38
5.3.260.0100.04714.47
5.3.250.0130.04314.45
5.3.240.0070.05314.65
5.3.230.0170.04314.37
5.3.220.0170.06714.55
5.3.210.0100.05714.40
5.3.200.0030.05714.72
5.3.190.0100.04714.40
5.3.180.0070.04714.26
5.3.170.0130.04314.33
5.3.160.0100.04314.40
5.3.150.0100.05014.57
5.3.140.0070.05014.57
5.3.130.0030.05314.54
5.3.120.0130.05014.25
5.3.110.0100.04714.70
5.3.100.0200.03713.90
5.3.90.0070.04714.03
5.3.80.0070.05014.03
5.3.70.0000.05313.86
5.3.60.0000.07013.88
5.3.50.0100.04713.94
5.3.40.0170.05013.83
5.3.30.0030.05013.95
5.3.20.0030.05013.70
5.3.10.0070.05013.50
5.3.00.0070.05013.67
5.2.170.0170.04711.05
5.2.160.0070.04311.25
5.2.150.0030.04311.14
5.2.140.0070.04011.15
5.2.130.0000.04711.20
5.2.120.0100.03311.09
5.2.110.0130.03011.00
5.2.100.0030.03711.01
5.2.90.0170.04711.10
5.2.80.0130.03311.05
5.2.70.0000.04711.07
5.2.60.0030.04311.07
5.2.50.0070.03710.90
5.2.40.0030.04011.03
5.2.30.0070.04010.80
5.2.20.0070.04011.11
5.2.10.0030.03710.93
5.2.00.0100.03310.71
5.1.60.0030.03310.05
5.1.50.0100.0439.84
5.1.40.0000.0409.91
5.1.30.0030.03710.25
5.1.20.0000.04010.31
5.1.10.0070.03710.08
5.1.00.0030.03710.13
5.0.50.0070.0238.39
5.0.40.0070.0238.32
5.0.30.0030.0438.24
5.0.20.0070.0238.25
5.0.10.0100.0238.20
5.0.00.0000.0438.21
4.4.90.0030.0237.25
4.4.80.0000.0337.25
4.4.70.0100.0137.25
4.4.60.0000.0237.25
4.4.50.0070.0177.25
4.4.40.0000.0337.25
4.4.30.0000.0237.25
4.4.20.0000.0237.25
4.4.10.0000.0277.25
4.4.00.0000.0507.25
4.3.110.0000.0237.25
4.3.100.0070.0177.25
4.3.90.0070.0177.25
4.3.80.0000.0337.25
4.3.70.0030.0207.25
4.3.60.0030.0207.25
4.3.50.0030.0237.25
4.3.40.0070.0277.25
4.3.30.0030.0207.25
4.3.20.0000.0237.25
4.3.10.0070.0207.25
4.3.00.0300.01713.33

preferences:
43.85 ms | 400 KiB | 5 Q