3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Collection { private $a = array(); public function __construct() { for ($i = 0; $i < 100000; $i++) { $this->a[] = $i; } } public function all() { return $this->a; } } $coll = new Collection(); $start = microtime(true); foreach ($coll->all() as $k => $v) { $a[$k] = $v + 1; } echo "Completed in ", microtime(true) - $start, " Seconds\n"; $start = microtime(true); $arr = $coll->all(); foreach ($arr as $k => &$v) { $v = $v + 1; } echo "Completed in ", microtime(true) - $start, " Seconds\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)
7.4.00.0130.03626.77
7.3.120.0180.02326.21
7.3.110.0150.02826.13
7.3.100.0200.01626.36
7.3.90.0180.01926.29
7.3.80.0160.01726.23
7.3.70.0070.02625.99
7.3.60.0150.02226.03
7.3.50.0150.01826.19
7.3.40.0180.01726.31
7.3.30.0110.02126.12
7.3.20.0050.02430.49
7.3.10.0080.02230.55
7.3.00.0060.02030.62
7.2.250.0160.03326.66
7.2.240.0120.03526.49
7.2.230.0190.01726.38
7.2.220.0180.01826.29
7.2.210.0130.02226.32
7.2.200.0160.02126.29
7.2.190.0160.01826.39
7.2.180.0120.02326.41
7.2.170.0110.02126.51
7.2.160.0130.02626.32
7.2.150.0130.02330.68
7.2.140.0130.02330.83
7.2.130.0110.01430.90
7.2.120.0120.02230.91
7.2.110.0100.02030.82
7.2.100.0060.02630.78
7.2.90.0100.02030.91
7.2.80.0140.02730.79
7.2.70.0070.03230.86
7.2.60.0140.02530.97
7.2.50.0040.02930.63
7.2.40.0100.02430.97
7.2.30.0060.02631.04
7.2.20.0220.01231.01
7.2.10.0060.02630.89
7.2.00.0060.02432.13
7.1.330.0030.03429.79
7.1.320.0120.02929.80
7.1.310.0080.03829.79
7.1.300.0100.02829.91
7.1.290.0070.02929.55
7.1.280.0090.02929.90
7.1.270.0060.02729.75
7.1.260.0100.02729.64
7.1.250.0070.03129.66
7.1.70.0000.02131.17
7.1.60.0140.02431.43
7.1.50.0560.02531.16
7.1.00.0100.09036.31
7.0.200.0290.02530.63
7.0.140.0030.09035.97
7.0.110.3970.09031.33
7.0.100.3630.07031.34
7.0.90.3200.09331.36
7.0.80.0070.10331.45
7.0.70.3430.09731.42
7.0.60.3670.09031.34
7.0.50.3870.08031.74
7.0.40.3170.08329.10
7.0.30.3230.08029.11
7.0.20.2930.10328.96
7.0.10.3200.07729.11
7.0.00.3330.07028.89
5.6.280.0270.13063.32
5.6.260.0130.12363.08
5.6.250.0230.12362.92
5.6.240.0270.15063.05
5.6.230.0300.11763.03
5.6.220.0470.11763.02
5.6.210.0270.12362.96
5.6.200.0400.12363.67
5.6.190.0300.12363.35
5.6.180.0300.14063.70
5.6.170.0170.13363.48
5.6.160.0430.13063.55
5.6.150.0170.11763.52
5.6.140.0170.13363.59
5.6.130.0070.15763.39
5.6.120.0230.13063.46
5.6.110.0270.13763.54
5.6.100.0230.12763.61
5.6.90.0230.14363.30
5.6.80.0270.08363.05
5.6.70.0100.11763.05
5.6.60.0270.12362.88
5.6.50.0200.14062.81
5.6.40.0130.13762.67
5.6.30.0400.12362.84
5.6.20.0270.12362.74
5.6.10.0370.13362.71
5.6.00.0370.12062.89
5.5.380.0330.13362.81
5.5.370.0230.15062.81
5.5.360.0330.12762.86
5.5.350.0300.10362.82
5.5.340.0400.13363.29
5.5.330.0300.12763.43
5.5.320.0270.10063.22
5.5.310.0170.14063.21
5.5.300.0370.13763.33
5.5.290.0200.11763.41
5.5.280.0270.12363.35
5.5.270.0130.14063.10
5.5.260.0270.13063.14
5.5.250.0500.10763.23
5.5.240.0200.14362.78
5.5.230.0230.12362.61
5.5.220.0200.13762.59
5.5.210.0230.13062.75
5.5.200.0230.12062.79
5.5.190.0130.15062.74
5.5.180.0300.11062.64
5.5.160.0270.12062.48
5.5.150.0430.10362.66
5.5.140.0170.13762.79
5.5.130.0430.11762.56
5.5.120.0300.12062.61
5.5.110.0330.11062.44
5.5.100.0330.12362.52
5.5.90.0330.13362.54
5.5.80.0230.12062.45
5.5.70.0230.12362.50
5.5.60.0300.11362.41
5.5.50.0230.09362.47
5.5.40.0230.11762.43
5.5.30.0130.08362.63
5.5.20.0130.08362.43
5.5.10.0170.07762.44
5.5.00.0000.09362.58
5.4.450.0270.13061.86
5.4.440.0270.13061.85
5.4.430.0230.13761.73
5.4.420.0170.15061.73
5.4.410.0300.07361.79
5.4.400.0300.13361.40
5.4.390.0300.13061.33
5.4.380.0270.11761.27
5.4.370.0330.12361.27
5.4.360.0200.11761.60
5.4.350.0100.13061.53
5.4.340.0130.10761.43
5.4.320.0330.10761.34
5.4.310.0300.13061.27
5.4.300.0270.13361.50
5.4.290.0330.11761.28
5.4.280.0230.12361.27
5.4.270.0200.12361.37
5.4.260.0270.11761.32
5.4.250.0170.13061.36
5.4.240.0230.10761.59
5.4.230.0200.12061.50
5.4.220.0270.11361.59
5.4.210.0230.08061.31
5.4.200.0130.08361.65
5.4.190.0100.08761.48
5.4.180.0130.08761.43
5.4.170.0200.11761.27
5.4.160.0230.07061.34
5.4.150.0130.08761.32
5.4.140.0200.08758.82
5.4.130.0130.07758.63
5.4.120.0130.08758.80
5.4.110.0200.14358.90
5.4.100.0130.08058.69
5.4.90.0200.07359.03
5.4.80.0230.06758.85
5.4.70.0100.09058.85
5.4.60.0170.07358.76
5.4.50.0130.09358.89
5.4.40.0070.12059.00
5.4.30.0100.11758.85
5.4.20.0230.13358.71
5.4.10.0330.12358.82
5.4.00.0370.11058.23
5.3.290.0270.12756.43
5.3.280.0230.14056.15
5.3.270.0270.10356.13
5.3.260.0330.11756.37
5.3.250.0230.10056.13
5.3.240.0170.11356.11
5.3.230.0100.09056.14
5.3.220.0270.07355.99
5.3.210.0170.08756.06
5.3.200.0130.08356.00
5.3.190.0130.09356.10
5.3.180.0130.10756.08
5.3.170.0300.13056.16
5.3.160.0170.09756.16
5.3.150.0230.08056.08
5.3.140.0100.10056.08
5.3.130.0170.12356.07
5.3.120.0030.15356.06
5.3.110.0230.14756.04
5.3.100.0230.11055.39
5.3.90.0330.12355.44
5.3.80.0300.13055.32
5.3.70.0270.13755.55
5.3.60.0170.13755.48
5.3.50.0070.15055.48
5.3.40.0330.12055.23
5.3.30.0230.11755.35
5.3.20.0070.14055.25
5.3.10.0230.12755.14
5.3.00.0230.13755.07
5.2.170.0200.14050.50
5.2.160.0200.11750.53
5.2.150.0200.14050.54
5.2.140.0300.11750.50
5.2.130.0200.14050.47
5.2.120.0300.13350.57
5.2.110.0400.11050.51
5.2.100.0200.13050.58
5.2.90.0270.12750.51
5.2.80.0130.14050.45
5.2.70.0130.13750.51
5.2.60.0370.11050.43
5.2.50.0270.15350.66
5.2.40.0170.15350.40
5.2.30.0270.13350.45
5.2.20.0130.15350.42
5.2.10.0170.15750.34
5.2.00.0270.11750.34
5.1.60.0370.13362.90
5.1.50.0300.12762.93
5.1.40.0130.11762.87
5.1.30.0330.13363.35
5.1.20.0300.13063.14
5.1.10.0300.13063.02
5.1.00.0330.12763.08
5.0.50.0300.19761.47
5.0.40.0230.16761.32
5.0.30.0200.21761.15
5.0.20.0170.18761.12
5.0.10.0230.19760.94
5.0.00.0170.21761.12
4.4.90.0000.03011.85
4.4.80.0000.03711.85
4.4.70.0030.03711.85
4.4.60.0000.04011.85
4.4.50.0030.03711.85
4.4.40.0000.05711.85
4.4.30.0000.04011.85
4.4.20.0030.03311.85
4.4.10.0000.04011.85
4.4.00.0100.04711.85
4.3.110.0000.03711.85
4.3.100.0000.03711.85
4.3.90.0000.03311.85
4.3.80.0030.05711.85
4.3.70.0000.03311.85
4.3.60.0030.03311.85
4.3.50.0030.03311.85
4.3.40.0000.05311.85
4.3.30.0000.03711.85
4.3.20.0070.03311.85
4.3.10.0000.03711.85
4.3.00.0000.03311.85

preferences:
37.47 ms | 401 KiB | 5 Q