3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Assignment of an object Class Object{ public $foo="bar"; }; $objectVar = new Object(); $reference =& $objectVar; $assignment = $objectVar; $objectVar->foo = "qux"; var_dumpprint_r( $objectVar ); var_dumpprint_r( $reference ); var_dumpprint_r( $assignment ); $objectVar = null; var_dump($objectVar); var_dump($reference); var_dump($assignment);

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)
8.3.60.0140.00716.48
8.3.50.0040.01116.28
8.3.40.0140.00018.67
8.3.30.0090.00618.72
8.3.20.0070.00020.31
8.3.10.0000.00823.74
8.3.00.0070.00023.65
8.2.180.0110.00318.04
8.2.170.0080.00622.96
8.2.160.0100.00320.46
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0080.00019.70
8.2.110.0000.00920.93
8.2.100.0120.00017.80
8.2.90.0050.00319.11
8.2.80.0000.00817.97
8.2.70.0070.00417.50
8.2.60.0090.00017.91
8.2.50.0040.00718.07
8.2.40.0060.00320.51
8.2.30.0040.00419.29
8.2.20.0040.00417.61
8.2.10.0000.00718.00
8.2.00.0040.00417.80
8.1.280.0090.00925.92
8.1.270.0070.00724.02
8.1.260.0000.00726.35
8.1.250.0030.00528.09
8.1.240.0000.01022.42
8.1.230.0110.00019.02
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0080.00017.10
8.1.190.0040.00417.10
8.1.180.0050.00318.10
8.1.170.0000.00818.57
8.1.160.0040.00420.67
8.1.150.0050.00218.63
8.1.140.0040.00419.49
8.1.130.0000.00717.48
8.1.120.0000.00717.34
8.1.110.0070.00017.38
8.1.100.0050.00317.18
8.1.90.0040.00417.22
8.1.80.0000.01017.31
8.1.70.0030.00317.19
8.1.60.0000.00817.38
8.1.50.0080.00017.32
8.1.40.0000.00717.28
8.1.30.0090.00017.35
8.1.20.0000.00717.43
8.1.10.0000.00817.24
8.1.00.0030.00517.38
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.33
8.0.270.0070.00017.04
8.0.260.0000.00718.16
8.0.250.0030.00316.91
8.0.240.0000.00716.93
8.0.230.0030.00316.79
8.0.220.0040.00416.83
8.0.210.0000.00616.82
8.0.200.0030.00316.83
8.0.190.0050.00316.88
8.0.180.0030.00516.90
8.0.170.0030.00516.86
8.0.160.0030.00316.78
8.0.150.0000.00716.77
8.0.140.0000.00716.77
8.0.130.0030.00313.25
8.0.120.0040.00416.79
8.0.110.0040.00416.74
8.0.100.0000.00716.71
8.0.90.0000.00816.77
8.0.80.0090.00616.79
8.0.70.0000.00816.76
8.0.60.0000.00816.69
8.0.50.0040.00416.69
8.0.30.0050.01316.98
8.0.20.0150.01017.40
8.0.10.0000.00816.79
8.0.00.0110.00716.55
7.4.330.0020.00216.71
7.4.320.0000.00616.34
7.4.300.0030.00316.44
7.4.290.0030.00316.47
7.4.280.0080.00316.46
7.4.270.0000.00616.47
7.4.260.0000.00716.44
7.4.250.0030.00316.40
7.4.240.0040.00416.34
7.4.230.0000.00716.56
7.4.220.0130.01216.41
7.4.210.0040.01116.32
7.4.200.0000.00716.35
7.4.160.0090.00616.48
7.4.150.0060.01217.40
7.4.140.0090.01117.86
7.4.130.0070.01216.28
7.4.120.0080.01016.40
7.4.110.0170.00016.30
7.4.100.0130.00716.55
7.4.90.0070.01016.29
7.4.80.0120.01119.39
7.4.70.0100.00616.36
7.4.60.0090.01216.35
7.4.50.0100.00716.24
7.4.40.0070.01016.26
7.4.30.0070.01016.42
7.4.00.0020.01714.93
7.3.330.0070.00013.18
7.3.320.0050.00013.07
7.3.310.0090.00016.04
7.3.300.0000.00616.18
7.3.290.0060.00916.19
7.3.280.0090.01016.17
7.3.270.0060.01517.40
7.3.260.0130.01016.23
7.3.250.0060.01016.25
7.3.240.0060.01316.13
7.3.230.0090.00816.39
7.3.210.0140.00416.23
7.3.200.0060.01019.39
7.3.190.0100.00616.19
7.3.180.0090.00616.31
7.3.170.0070.01016.27
7.3.160.0150.00616.21
7.3.120.0060.00614.39
7.3.110.0070.01014.44
7.3.100.0070.01014.82
7.3.90.0000.01314.59
7.3.80.0030.00614.77
7.3.70.0070.00714.74
7.3.60.0060.00914.67
7.3.50.0060.00614.69
7.3.40.0040.01214.51
7.3.30.0070.00714.76
7.3.20.0130.00316.59
7.3.10.0120.00016.70
7.3.00.0030.01416.54
7.2.330.0150.00316.64
7.2.320.0100.00716.25
7.2.310.0040.01216.11
7.2.300.0030.01316.52
7.2.290.0070.01016.41
7.2.250.0110.00714.44
7.2.240.0080.01214.68
7.2.230.0090.00614.63
7.2.220.0070.00714.73
7.2.210.0070.00714.54
7.2.200.0030.00715.00
7.2.190.0070.01014.79
7.2.180.0030.01014.75
7.2.170.0070.00714.77
7.2.60.0030.01016.75
7.2.00.0040.01219.33
7.1.330.0070.01015.98
7.1.320.0070.00715.72
7.1.310.0100.00315.86
7.1.300.0120.00015.54
7.1.290.0030.01015.80
7.1.280.0100.00315.79
7.1.270.0070.00715.80
7.1.260.0040.00415.75
7.1.200.0040.00815.76
7.1.100.0080.00417.70
7.1.70.0040.00716.69
7.1.60.0110.01419.18
7.1.50.0030.00816.64
7.1.00.0070.07322.41
7.0.200.0320.00416.35
7.0.60.0130.07021.55
7.0.50.0070.04717.89
7.0.40.0100.08320.17
7.0.30.0400.06720.24
7.0.20.0200.08320.10
7.0.10.0030.04320.16
7.0.00.0000.06320.05
5.6.280.0000.05320.89
5.6.210.0170.07020.67
5.6.200.0100.06318.20
5.6.190.0070.04020.61
5.6.180.0170.04720.66
5.6.170.0330.06720.49
5.6.160.0030.08720.57
5.6.150.0070.08018.22
5.6.140.0000.04318.17
5.6.130.0130.06318.18
5.6.120.0070.05721.09
5.6.110.0100.03721.11
5.6.100.0230.06321.00
5.6.90.0030.06321.09
5.6.80.0130.06320.42
5.5.350.0230.07020.44
5.5.340.0100.05017.93
5.5.330.0000.04720.35
5.5.320.0270.08020.21
5.5.310.0230.08320.28
5.5.300.0100.07718.09
5.5.290.0030.08717.98
5.5.280.0000.04720.71
5.5.270.0100.06320.87
5.5.260.0030.06320.67
5.5.250.0070.06320.66
5.5.240.0200.06320.26

preferences:
51.07 ms | 400 KiB | 5 Q