3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = new stdClass(); $b =& $test->a; var_dump($test);

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)
8.3.60.0060.00918.41
8.3.50.0150.00618.29
8.3.40.0090.00618.72
8.3.30.0040.01118.58
8.3.20.0060.00318.78
8.3.10.0000.00721.73
8.3.00.0070.00021.79
8.2.180.0100.01018.40
8.2.170.0140.00722.96
8.2.160.0070.01119.09
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0140.00026.16
8.2.120.0040.00420.97
8.2.110.0060.00320.46
8.2.100.0060.00917.72
8.2.90.0040.00417.90
8.2.80.0000.00917.97
8.2.70.0030.00617.80
8.2.60.0040.00418.03
8.2.50.0060.00418.10
8.2.40.0070.00019.22
8.2.30.0020.00520.51
8.2.20.0060.00318.05
8.2.10.0060.00318.01
8.2.00.0030.00519.38
8.1.280.0100.01325.92
8.1.270.0000.00820.38
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0110.00317.39
8.1.230.0090.00322.81
8.1.220.0030.00617.77
8.1.210.0000.00818.87
8.1.200.0110.00017.00
8.1.190.0030.00517.25
8.1.180.0080.00018.10
8.1.170.0090.00018.59
8.1.160.0000.00718.71
8.1.150.0000.00718.71
8.1.140.0040.00418.74
8.1.130.0030.00519.04
8.1.120.0000.00817.41
8.1.110.0040.00417.41
8.1.100.0060.00317.43
8.1.90.0070.00017.42
8.1.80.0080.00017.35
8.1.70.0060.00317.30
8.1.60.0050.00317.42
8.1.50.0030.00517.36
8.1.40.0040.00417.41
8.1.30.0040.00417.64
8.1.20.0050.00317.42
8.1.10.0000.00717.50
8.1.00.0070.00017.36
8.0.300.0050.00319.54
8.0.290.0070.00016.58
8.0.280.0030.00518.35
8.0.270.0030.00317.07
8.0.260.0000.00616.64
8.0.250.0030.00616.82
8.0.240.0030.00316.76
8.0.230.0070.00016.78
8.0.220.0040.00316.89
8.0.210.0030.00716.82
8.0.200.0030.00316.90
8.0.190.0050.00316.87
8.0.180.0000.00816.77
8.0.170.0040.00416.76
8.0.160.0030.00316.78
8.0.150.0000.00716.81
8.0.140.0080.00016.77
8.0.130.0030.00313.25
8.0.120.0000.00816.70
8.0.110.0040.00416.84
8.0.100.0020.00516.82
8.0.90.0040.00416.67
8.0.80.0050.01116.83
8.0.70.0070.00016.83
8.0.60.0070.00016.88
8.0.50.0000.00716.84
8.0.30.0100.00917.08
8.0.20.0120.00617.40
8.0.10.0040.00416.76
8.0.00.0030.01416.60
7.4.330.0050.00015.55
7.4.320.0040.00416.42
7.4.300.0000.00616.55
7.4.290.0000.00816.55
7.4.280.0030.00516.38
7.4.270.0030.00316.43
7.4.260.0050.00316.52
7.4.250.0040.00416.52
7.4.240.0040.00416.55
7.4.230.0040.00416.47
7.4.220.0000.00816.44
7.4.210.0060.01116.49
7.4.200.0030.00316.35
7.4.160.0070.00916.50
7.4.140.0100.00917.86
7.4.130.0110.01116.50
7.4.120.0100.00716.45
7.4.110.0000.01716.32
7.4.100.0060.01316.56
7.4.90.0090.01316.43
7.4.80.0100.00719.39
7.4.70.0160.00916.60
7.4.60.0110.00816.24
7.4.50.0080.00816.35
7.4.40.0080.00816.43
7.4.00.0070.01014.91
7.3.330.0050.00012.94
7.3.320.0020.00213.07
7.3.310.0030.00316.13
7.3.300.0000.00716.07
7.3.290.0000.00716.24
7.3.280.0070.00916.26
7.3.260.0090.01016.31
7.3.240.0100.00716.36
7.3.230.0150.00416.22
7.3.210.0080.00816.58
7.3.200.0170.00716.25
7.3.190.0120.00816.32
7.3.180.0130.00516.23
7.3.170.0130.00516.45
7.3.160.0070.01016.52
7.3.10.0070.00716.48
7.3.00.0000.01516.69
7.2.330.0070.01416.52
7.2.320.0060.01216.45
7.2.310.0100.00716.47
7.2.300.0110.01616.57
7.2.290.0040.01216.30
7.2.130.0060.01016.98
7.2.120.0030.01016.73
7.2.110.0070.00716.49
7.2.100.0460.00615.73
7.2.90.0350.00715.68
7.2.80.0170.00315.60
7.2.70.0110.01215.83
7.2.60.0370.00915.58
7.2.50.0090.00715.82
7.2.40.0210.00515.76
7.2.30.0120.00315.83
7.2.20.0020.01115.66
7.2.10.0060.01015.82
7.2.00.1250.01115.74
7.1.250.0070.00315.41
7.1.210.2340.01013.61
7.1.200.0390.00413.59
7.1.190.0260.01313.48
7.1.180.0280.00713.55
7.1.170.0640.00613.71
7.1.160.0190.01013.66
7.1.150.0310.00613.42
7.1.140.0210.00013.61
7.1.130.1990.00713.90
7.1.120.2090.01013.71
7.1.110.2440.00613.48
7.1.100.0270.00713.67
7.1.90.0310.00613.53
7.1.80.1070.00813.43
7.1.70.0830.00313.71
7.1.60.0690.01331.51
7.1.50.0440.01631.52
7.1.40.0450.01331.53
7.1.30.1880.01031.54
7.1.20.1060.00731.52
7.1.10.0600.00313.45
7.1.00.0100.00613.70

preferences:
73.44 ms | 400 KiB | 5 Q