3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Example { public $foo = "bar"; } $e = new Example(); var_dump(memory_get_usage(true)); // increase memory $e->foo = str_repeat($e->foo, 10000000); var_dump(memory_get_usage(true)); // no significant increase in memory because of copy-on-write $x = get_object_vars($e); var_dump(memory_get_usage(true)); // write happens, so a copy is made, so memory increases $x["foo"] = $x["foo"] . ""; var_dump(memory_get_usage(true));

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)
7.3.00.0780.01473.51
7.2.130.0550.00773.97
7.2.120.1980.00772.32
7.2.110.0470.01873.88
7.2.100.0500.00973.59
7.2.90.0660.02473.65
7.2.80.0560.01773.73
7.2.70.0740.01473.80
7.2.60.0650.01773.83
7.2.50.0370.02274.18
7.2.40.0530.02573.98
7.2.30.0450.01073.86
7.2.20.0430.01373.82
7.2.10.0340.01073.96
7.2.00.0310.01475.27
7.1.250.1560.01772.88
7.1.240.0520.01572.66
7.1.230.0590.00672.82
7.1.220.0330.01772.86
7.1.210.0730.02172.64
7.1.200.0390.02372.65
7.1.190.0520.01972.92
7.1.180.0680.01972.77
7.1.170.0470.01372.69
7.1.160.0720.02072.86
7.1.150.0560.02072.99
7.1.140.0710.01972.80
7.1.130.0340.01072.90
7.1.120.0650.01072.79
7.1.110.0480.01072.91
7.1.100.0340.01672.93
7.1.90.0480.02772.85
7.1.80.0500.02072.63
7.1.70.0530.01573.52
7.1.60.0340.01473.66
7.1.50.0340.01673.45
7.1.40.5880.02785.36
7.1.30.4440.01682.34
7.1.20.5410.03082.23
7.1.10.3570.03073.13
7.1.00.4010.02373.13
7.0.330.2190.02072.36
7.0.320.0650.02572.19
7.0.310.0620.01172.26
7.0.300.0180.01872.54
7.0.290.0550.01672.43
7.0.280.0500.01072.63
7.0.270.0550.01972.52
7.0.260.0600.01572.39
7.0.250.0210.01672.29
7.0.240.0640.01172.57
7.0.230.0310.03172.70
7.0.220.0630.01272.66
7.0.210.0380.02572.59
7.0.200.0680.01973.25
7.0.190.0640.01072.62
7.0.180.4140.02872.91
7.0.170.3780.02772.76
7.0.160.4030.02372.89
7.0.150.3450.02772.86
7.0.140.3700.02672.92
7.0.130.2250.02273.14
7.0.120.0830.02172.93
7.0.110.0790.02273.00
7.0.100.0820.02072.92
7.0.90.0950.02072.84
7.0.80.0620.02372.78
7.0.70.0760.02473.01
7.0.60.0600.02672.71
7.0.50.0770.02272.86
7.0.40.0760.02171.96
7.0.30.0810.02972.02
7.0.20.0380.01772.01
7.0.10.0350.02371.75
7.0.00.0240.02571.91
5.6.380.0260.02971.72

preferences:
41.87 ms | 403 KiB | 5 Q