3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = (object)array('123a' => '456'); print_r($obj); if (!property_exists($obj,'123a')) echo 'property 123a does not exist',"\n"; if ( !isset( $obj->{'123a'} ) ) echo 'property 123a is null',"\n";

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)
8.3.60.0090.00618.68
8.3.50.0100.01021.19
8.3.40.0090.00618.54
8.3.30.0090.00619.01
8.3.20.0040.00420.15
8.3.10.0000.00723.70
8.3.00.0050.00319.38
8.2.180.0090.00616.63
8.2.170.0110.00322.96
8.2.160.0100.00320.39
8.2.150.0030.00524.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0100.00722.09
8.2.110.0090.00020.35
8.2.100.0120.00317.91
8.2.90.0090.00318.22
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0050.00318.00
8.2.50.0040.00418.07
8.2.40.0040.00419.66
8.2.30.0040.00417.97
8.2.20.0040.00417.68
8.2.10.0000.00718.03
8.2.00.0070.00017.66
8.1.280.0140.00625.92
8.1.270.0000.00822.20
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0060.00322.02
8.1.230.0040.00820.98
8.1.220.0050.00317.74
8.1.210.0000.00818.86
8.1.200.0050.00517.23
8.1.190.0080.00017.23
8.1.180.0050.00318.10
8.1.170.0030.00618.66
8.1.160.0000.00722.00
8.1.150.0000.00718.95
8.1.140.0060.00317.45
8.1.130.0030.00617.83
8.1.120.0040.00417.46
8.1.110.0030.00517.33
8.1.100.0040.00417.36
8.1.90.0050.00217.52
8.1.80.0070.00017.46
8.1.70.0030.00317.35
8.1.60.0080.00017.57
8.1.50.0040.00417.56
8.1.40.0000.00717.42
8.1.30.0030.00517.64
8.1.20.0000.00817.72
8.1.10.0000.00717.48
8.1.00.0000.00717.38
8.0.300.0040.00419.96
8.0.290.0000.00716.88
8.0.280.0070.00018.45
8.0.270.0000.00717.18
8.0.260.0000.00717.30
8.0.250.0000.00716.91
8.0.240.0040.00417.07
8.0.230.0040.00417.00
8.0.220.0030.00316.91
8.0.210.0000.00616.83
8.0.200.0060.00316.88
8.0.190.0080.00317.02
8.0.180.0040.00416.94
8.0.170.0000.00816.94
8.0.160.0030.00717.07
8.0.150.0040.00416.88
8.0.140.0080.00016.98
8.0.130.0000.00613.34
8.0.120.0040.00416.93
8.0.110.0060.00316.88
8.0.100.0080.00017.02
8.0.90.0040.00417.02
8.0.80.0000.01616.99
8.0.70.0040.00416.97
8.0.60.0040.00417.02
8.0.50.0040.00417.02
8.0.30.0110.00817.01
8.0.20.0110.00717.40
8.0.10.0040.00417.12
8.0.00.0090.01116.94
7.4.330.0000.00515.16
7.4.320.0000.00616.67
7.4.300.0030.00316.60
7.4.290.0030.00316.61
7.4.280.0000.00816.61
7.4.270.0030.00316.46
7.4.260.0060.00316.51
7.4.250.0000.00716.39
7.4.240.0040.00316.42
7.4.230.0040.00416.62
7.4.220.0130.00916.62
7.4.210.0080.01116.34
7.4.200.0050.00316.47
7.4.160.0090.00916.64
7.4.150.0140.01117.40
7.4.140.0070.01017.86
7.4.130.0110.00516.39
7.4.120.0100.00616.41
7.4.110.0110.00616.53
7.4.100.0100.01016.50
7.4.90.0090.00916.54
7.4.80.0060.01219.39
7.4.70.0120.00616.69
7.4.60.0070.01116.41
7.4.50.0030.00616.35
7.4.40.0090.01316.57
7.4.30.0030.01216.41
7.4.00.0040.00714.81
7.3.330.0020.00213.19
7.3.320.0000.00513.09
7.3.310.0030.00316.28
7.3.300.0000.00616.25
7.3.290.0080.00516.23
7.3.280.0070.01016.23
7.3.270.0030.01417.40
7.3.260.0100.00716.27
7.3.250.0130.00716.37
7.3.240.0080.00816.24
7.3.230.0090.00816.39
7.3.210.0030.01316.51
7.3.200.0120.00619.39
7.3.190.0110.01116.52
7.3.180.0150.00616.54
7.3.170.0100.01016.27
7.3.160.0090.00616.23
7.3.10.0100.00016.27
7.3.00.0120.00016.37
7.2.330.0030.01316.61
7.2.320.0070.01416.36
7.2.310.0040.01316.55
7.2.300.0030.02116.57
7.2.290.0060.01216.58
7.2.130.0030.01216.91
7.2.120.0040.00416.53
7.2.110.0060.00916.77
7.2.100.0060.01016.30
7.2.90.0000.01316.62
7.2.80.0040.00716.72
7.2.70.0090.00316.88
7.2.60.0110.00316.57
7.2.50.0030.00916.70
7.2.40.0030.00716.47
7.2.30.0030.00616.73
7.2.20.0100.00316.66
7.2.10.0100.00616.61
7.2.00.0040.00717.94
7.1.250.0030.00915.50
7.1.100.0070.00318.18
7.1.70.0080.00417.01
7.1.60.0060.00919.11
7.1.50.0060.01516.81
7.1.00.0000.08022.31
7.0.200.0000.00716.87
7.0.140.0070.07022.00
7.0.60.0130.06320.00
7.0.50.0030.08717.77
7.0.40.0070.09020.07
7.0.30.0470.07720.34
7.0.20.0300.07720.00
7.0.10.0030.09020.00
7.0.00.0130.08020.04
5.6.280.0000.07720.91
5.6.210.0170.07320.54
5.6.200.0100.07318.19
5.6.190.0070.07320.33
5.6.180.0270.08020.56
5.6.170.0330.07720.56
5.6.160.0070.08020.51
5.6.150.0070.05718.21
5.6.140.0070.04318.16
5.6.130.0030.04018.16
5.6.120.0070.07720.88
5.6.110.0100.05720.89
5.6.100.0130.08020.89
5.6.90.0070.04321.03
5.6.80.0030.08720.37
5.5.350.0130.06320.36
5.5.340.0030.04018.00
5.5.330.0070.04020.25
5.5.320.0470.05320.27
5.5.310.0230.07720.13
5.5.300.0130.05018.02
5.5.290.0000.04717.99
5.5.280.0100.07720.80
5.5.270.0070.08020.66
5.5.260.0170.06320.86
5.5.250.0130.07720.49
5.5.240.0200.08020.16
5.4.450.0300.05019.58
5.4.440.0230.06719.63
5.4.430.0730.05319.46
5.4.420.0670.00019.48
5.4.410.0630.00019.14
5.4.400.0630.00019.19
5.4.390.0600.00019.05
5.4.380.0670.00019.07
5.4.370.0630.00019.16
5.4.360.0600.00019.09
5.4.350.0600.00018.96
5.4.340.0030.03911.97
5.4.320.0080.03612.45
5.4.310.0050.03812.45
5.4.300.0050.03812.45
5.4.290.0050.04912.45
5.4.280.0080.03412.35
5.4.270.0020.03812.35
5.4.260.0070.04312.35
5.4.250.0070.04112.35
5.4.240.0060.03412.35
5.4.230.0040.03912.34
5.4.220.0080.03412.34
5.4.210.0060.03512.34
5.4.200.0080.03712.34
5.4.190.0060.03612.34
5.4.180.0070.04312.34
5.4.170.0070.03412.35
5.4.160.0070.03812.35
5.4.150.0050.03712.34
5.4.140.0060.03612.02
5.4.130.0050.03512.02
5.4.120.0060.03411.97
5.4.110.0090.03111.96
5.4.100.0070.04311.97
5.4.90.0040.03811.96
5.4.80.0030.03811.97
5.4.70.0070.03811.96
5.4.60.0030.03711.97
5.4.50.0070.03511.96
5.4.40.0090.03111.95
5.4.30.0060.03911.95
5.4.20.0060.04011.95
5.4.10.0080.03311.95
5.4.00.0080.03511.44
5.3.290.0070.03912.80
5.3.280.0050.03912.71
5.3.270.0080.03712.72
5.3.260.0080.04012.72
5.3.250.0090.04112.72
5.3.240.0060.03712.72
5.3.230.0080.04012.71
5.3.220.0080.04312.68
5.3.210.0080.03812.68
5.3.200.0080.03412.68
5.3.190.0080.03712.67
5.3.180.0080.04112.67
5.3.170.0040.03812.67
5.3.160.0080.03512.68
5.3.150.0070.03512.67
5.3.140.0060.03612.66
5.3.130.0080.04612.65
5.3.120.0050.03912.65
5.3.110.0060.04112.66
5.3.100.0050.03812.12
5.3.90.0030.03812.08
5.3.80.0050.03712.08
5.3.70.0040.03712.07
5.3.60.0110.03812.07
5.3.50.0040.03812.00
5.3.40.0060.03612.00
5.3.30.0060.03411.95
5.3.20.0050.04211.72
5.3.10.0050.03611.69
5.3.00.0050.03511.68
5.2.170.0080.0299.18
5.2.160.0030.0309.18
5.2.150.0060.0359.18
5.2.140.0050.0329.17
5.2.130.0080.0339.14
5.2.120.0040.0289.14
5.2.110.0060.0319.14
5.2.100.0070.0339.14
5.2.90.0060.0339.14
5.2.80.0060.0349.13
5.2.70.0060.0449.14
5.2.60.0030.0319.09
5.2.50.0050.0299.05
5.2.40.0050.0409.04
5.2.30.0040.0339.01
5.2.20.0050.0289.00
5.2.10.0050.0268.92
5.2.00.0060.0278.77
5.1.60.0040.0248.06
5.1.50.0050.0248.05
5.1.40.0030.0258.04
5.1.30.0070.0228.39
5.1.20.0040.0338.41
5.1.10.0060.0288.14
5.1.00.0020.0288.14
5.0.50.0050.0206.62
5.0.40.0050.0176.48
5.0.30.0030.0316.29
5.0.20.0050.0176.26
5.0.10.0030.0226.24
5.0.00.0020.0376.23
4.4.90.0020.0164.78
4.4.80.0040.0184.75
4.4.70.0030.0164.76
4.4.60.0020.0204.75
4.4.50.0020.0154.77
4.4.40.0060.0284.71
4.4.30.0060.0174.76
4.4.20.0020.0174.84
4.4.10.0020.0184.85
4.4.00.0040.0244.76
4.3.110.0040.0154.67
4.3.100.0040.0134.67
4.3.90.0020.0154.63
4.3.80.0030.0234.58
4.3.70.0030.0144.63
4.3.60.0030.0154.63
4.3.50.0040.0174.62
4.3.40.0040.0234.54
4.3.30.0000.0183.28
4.3.20.0000.0193.26
4.3.10.0050.0133.22
4.3.00.0170.0237.19

preferences:
44.5 ms | 401 KiB | 5 Q