3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = (object)array('123' => 456); print_r($obj); if (!property_exists($obj,'123')) { echo 'property \'123\' does not exist',"\n"; } if ( !isset( $obj->{'123'} ) ) { echo 'property \'123\' 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)
5.4.340.0330.06718.83
5.4.320.0330.04019.08
5.4.310.0500.05019.09
5.4.300.0500.04019.13
5.4.290.0470.06019.22
5.4.280.0370.04319.10
5.4.270.0400.06019.24
5.4.260.0270.07719.16
5.4.250.0270.05319.09
5.4.240.0230.03719.21
5.4.230.0270.03318.78
5.4.220.0270.03719.07
5.4.210.0300.03319.24
5.4.200.0230.05719.09
5.4.190.0400.04719.09
5.4.180.0400.06719.13
5.4.170.0400.06718.88
5.4.160.0300.06319.07
5.4.150.0530.05319.11
5.4.140.0300.03716.55
5.4.130.0330.04316.26
5.4.120.0230.03716.54
5.4.110.0300.04316.07
5.4.100.0370.03316.09
5.4.90.0370.05316.49
5.4.80.0370.02716.48
5.4.70.0430.03316.18
5.4.60.0330.03716.18
5.4.50.0330.04316.36
5.4.40.0230.04716.43
5.4.30.0230.04016.27
5.4.20.0230.04316.40
5.4.10.0230.03716.39
5.4.00.0300.03315.80
5.3.290.0470.06014.57
5.3.280.0370.07014.43
5.3.270.0370.03714.55
5.3.260.0370.03314.44
5.3.250.0400.05714.46
5.3.240.0370.07014.63
5.3.230.0300.07014.45
5.3.220.0270.07314.41
5.3.210.0430.03314.40
5.3.200.0230.03714.42
5.3.190.0230.04314.42
5.3.180.0300.07014.42
5.3.170.0430.03314.41
5.3.160.0300.04014.40
5.3.150.0370.03314.51
5.3.140.0370.05714.50
5.3.130.0300.03314.64
5.3.120.0230.03714.59
5.3.110.0170.04314.45
5.3.100.0230.04313.89
5.3.90.0430.03314.07
5.3.80.0370.06013.82
5.3.70.0230.07714.05
5.3.60.0270.03313.84
5.3.50.0230.04013.74
5.3.40.0300.04313.82
5.3.30.0270.04013.79
5.3.20.0430.05713.55
5.3.10.0270.03313.50
5.3.00.0330.03313.60
5.2.170.0270.03711.60
5.2.160.0330.05011.60
5.2.150.0200.03311.60
5.2.140.0400.04711.60
5.2.130.0270.04011.60
5.2.120.0230.05011.60
5.2.110.0200.03011.60
5.2.100.0170.03311.60
5.2.90.0270.02311.60
5.2.80.0270.02311.60
5.2.70.0330.05311.60
5.2.60.0300.05311.60
5.2.50.0270.03011.60
5.2.40.0370.04311.60
5.2.30.0230.03011.60
5.2.20.0300.04011.60
5.2.10.0300.03711.54
5.2.00.0270.05311.54
5.1.60.0270.04711.54
5.1.50.0270.03311.54
5.1.40.0170.02311.54
5.1.30.0230.02011.54
5.1.20.0170.04311.54
5.1.10.0230.04311.54
5.1.00.0270.03311.54
5.0.50.0100.03711.54
5.0.40.0070.02311.54
5.0.30.0130.02711.54
5.0.20.0100.01711.54
5.0.10.0100.02711.54
5.0.00.0100.06311.54
4.4.90.0100.03311.60
4.4.80.0130.02711.60
4.4.70.0130.02711.60
4.4.60.0170.02011.60
4.4.50.0130.02311.60
4.4.40.0130.04711.54
4.4.30.0100.01311.54
4.4.20.0130.03711.54
4.4.10.0070.04011.54
4.4.00.0100.03311.54
4.3.110.0100.02311.54
4.3.100.0130.02711.54
4.3.90.0130.03311.54
4.3.80.0100.02711.54
4.3.70.0130.03011.54
4.3.60.0100.02711.54
4.3.50.0070.02311.54
4.3.40.0070.03011.54
4.3.30.0070.02711.54
4.3.20.0100.01311.54
4.3.10.0030.01711.54
4.3.00.0130.01011.54

preferences:
146.32 ms | 1398 KiB | 8 Q