3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = (object)array('123a' => '456'); print_r($obj); if (!property_exists($obj,'123a')) echo 'property 123a does not exist',"\n"; echo !isset($obj->{'123a'})? 'property 123a is null' : $obj->{'123a'}, "\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)
5.4.340.0230.04719.00
5.4.320.0330.03719.09
5.4.310.0370.03319.09
5.4.300.0330.03718.95
5.4.290.0370.03319.26
5.4.280.0330.04019.19
5.4.270.0400.03019.06
5.4.260.0330.03319.22
5.4.250.0330.03718.98
5.4.240.0470.03718.86
5.4.230.0330.03719.07
5.4.220.0400.04018.84
5.4.210.0370.04319.13
5.4.200.0400.02719.16
5.4.190.0330.05318.98
5.4.180.0300.04018.97
5.4.170.0330.04019.21
5.4.160.0400.06018.87
5.4.150.0470.06719.07
5.4.140.0330.04316.37
5.4.130.0470.06016.38
5.4.120.0400.02716.41
5.4.110.0400.03316.25
5.4.100.0470.04716.56
5.4.90.0370.04016.51
5.4.80.0400.03016.44
5.4.70.0430.03316.44
5.4.60.0370.03316.54
5.4.50.0430.06716.43
5.4.40.0470.05716.16
5.4.30.0400.05016.48
5.4.20.0430.06316.24
5.4.10.0470.06316.39
5.4.00.0330.04715.84
5.3.290.0370.03314.52
5.3.280.0330.03714.53
5.3.270.0330.03714.65
5.3.260.0400.04314.44
5.3.250.0400.06714.70
5.3.240.0400.03314.44
5.3.230.0400.06314.55
5.3.220.0430.04314.43
5.3.210.0370.04014.41
5.3.200.0400.03314.43
5.3.190.0300.04314.42
5.3.180.0300.05714.60
5.3.170.0530.03314.61
5.3.160.0400.03014.42
5.3.150.0570.04714.40
5.3.140.0500.03014.40
5.3.130.0430.07014.42
5.3.120.0330.07314.59
5.3.110.0370.06714.40
5.3.100.0400.05013.90
5.3.90.0500.04014.00
5.3.80.0530.06014.11
5.3.70.0500.06313.85
5.3.60.0600.05013.86
5.3.50.0570.05713.80
5.3.40.0400.06713.90
5.3.30.0430.06313.76
5.3.20.0370.04013.55
5.3.10.0400.04013.75
5.3.00.0370.03713.52
5.2.170.0370.03311.24
5.2.160.0330.03311.32
5.2.150.0330.03011.17
5.2.140.0500.05011.09
5.2.130.0430.04710.94
5.2.120.0400.03011.14
5.2.110.0400.02310.99
5.2.100.0400.02310.95
5.2.90.0330.03010.95
5.2.80.0370.03010.98
5.2.70.0400.05310.96
5.2.60.0300.03010.89
5.2.50.0330.03711.18
5.2.40.0270.03710.83
5.2.30.0170.03310.81
5.2.20.0270.02711.00
5.2.10.0300.02710.81
5.2.00.0200.03710.62
5.1.60.0200.0339.93
5.1.50.0330.0509.93
5.1.40.0300.0279.86
5.1.30.0330.02710.35
5.1.20.0300.05310.37
5.1.10.0330.0379.98
5.1.00.0370.04710.00
5.0.50.0230.0408.42
5.0.40.0170.0438.27
5.0.30.0130.0408.31
5.0.20.0130.0238.35
5.0.10.0130.0478.06
5.0.00.0130.0508.05
4.4.90.0170.0207.73
4.4.80.0130.0177.73
4.4.70.0100.0177.73
4.4.60.0170.0177.73
4.4.50.0130.0207.73
4.4.40.0100.0507.73
4.4.30.0230.0137.73
4.4.20.0170.0207.73
4.4.10.0170.0277.73
4.4.00.0230.0477.73
4.3.110.0130.0337.73
4.3.100.0130.0177.73
4.3.90.0170.0237.73
4.3.80.0130.0437.73
4.3.70.0230.0137.73
4.3.60.0170.0337.73
4.3.50.0200.0237.73
4.3.40.0170.0437.73
4.3.30.0100.0307.73
4.3.20.0100.0207.73
4.3.10.0130.0177.73
4.3.00.0070.0377.73

preferences:
141.23 ms | 1394 KiB | 7 Q