3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3,4]; foreach($a as &$num) {} echo implode(',',$a).PHP_EOL; // 1,2,3 var_dump($a); foreach($a as $num) {echo $num;} var_dump($num); var_dump($a); echo implode(',',$a).PHP_EOL; // 1,2,2

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)
8.3.60.0090.01218.30
8.3.50.0180.00416.51
8.3.40.0060.00918.72
8.3.30.0110.00318.59
8.3.20.0080.00018.90
8.3.10.0070.00021.60
8.3.00.0050.00223.65
8.2.180.0090.00618.05
8.2.170.0110.00422.96
8.2.160.0120.00320.79
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0000.00817.91
8.2.120.0000.00726.35
8.2.110.0090.00022.16
8.2.100.0080.00417.78
8.2.90.0070.00017.91
8.2.80.0060.00317.97
8.2.70.0000.00817.92
8.2.60.0080.00017.92
8.2.50.0040.00418.10
8.2.40.0040.00419.34
8.2.30.0030.00519.22
8.2.20.0020.00518.04
8.2.10.0080.00018.11
8.2.00.0040.00419.44
8.1.280.0100.00725.92
8.1.270.0060.00322.10
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0030.00622.42
8.1.230.0080.00320.97
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0040.00417.48
8.1.190.0030.00717.23
8.1.180.0080.00018.10
8.1.170.0000.00818.92
8.1.160.0000.00718.84
8.1.150.0070.00018.87
8.1.140.0000.00817.62
8.1.130.0030.00319.04
8.1.120.0000.00717.49
8.1.110.0030.00517.32
8.1.100.0000.00717.49
8.1.90.0000.00717.44
8.1.80.0060.00317.41
8.1.70.0070.00317.41
8.1.60.0050.00317.56
8.1.50.0060.00317.39
8.1.40.0030.00517.47
8.1.30.0000.00817.59
8.1.20.0000.00717.58
8.1.10.0000.00817.48
8.1.00.0000.00817.34
8.0.300.0040.00420.03
8.0.290.0000.00816.58
8.0.280.0070.00018.39
8.0.270.0040.00417.29
8.0.260.0030.00318.44
8.0.250.0030.00316.91
8.0.240.0040.00416.84
8.0.230.0000.00717.00
8.0.220.0000.00816.91
8.0.210.0000.00716.84
8.0.200.0000.00716.96
8.0.190.0000.00816.97
8.0.180.0000.00716.83
8.0.170.0040.00416.95
8.0.160.0040.00416.86
8.0.150.0030.00616.80
8.0.140.0000.00716.75
8.0.130.0030.00313.26
8.0.120.0040.00416.80
8.0.110.0040.00416.91
8.0.100.0040.00416.91
8.0.90.0040.00416.85
8.0.80.0020.01516.85
8.0.70.0000.00716.77
8.0.60.0000.00716.71
8.0.50.0000.00816.82
8.0.30.0120.00817.17
8.0.20.0060.01517.40
8.0.10.0000.00817.11
8.0.00.0090.00916.80
7.4.330.0050.00015.55
7.4.320.0000.00716.54
7.4.300.0030.00316.54
7.4.290.0000.00616.58
7.4.280.0040.00416.47
7.4.270.0090.00016.61
7.4.260.0030.00316.47
7.4.250.0000.00816.41
7.4.240.0050.00316.40
7.4.230.0070.00016.66
7.4.220.0040.00416.49
7.4.210.0080.00816.57
7.4.200.0000.00716.38
7.4.160.0110.00716.57
7.4.140.0120.00917.86
7.4.130.0130.01016.42
7.4.120.0120.00816.41
7.4.110.0100.01016.48
7.4.100.0030.01416.55
7.4.90.0160.00316.58
7.4.80.0140.00319.39
7.4.70.0130.01016.41
7.4.60.0060.00916.37
7.4.50.0040.01116.43
7.4.40.0090.01216.46
7.4.00.0120.00314.68
7.3.330.0050.00012.99
7.3.320.0030.00313.23
7.3.310.0000.00716.19
7.3.300.0030.00316.11
7.3.290.0000.00716.15
7.3.280.0110.00416.27
7.3.260.0080.01116.42
7.3.240.0090.01016.31
7.3.230.0070.01116.50
7.3.210.0130.00316.37
7.3.200.0090.00616.46
7.3.190.0030.01616.37
7.3.180.0110.00616.28
7.3.170.0140.00316.43
7.3.160.0120.00416.61
7.2.330.0090.00916.41
7.2.320.0140.00616.60
7.2.310.0090.00916.89
7.2.300.0060.01116.54
7.2.290.0110.00516.58
7.2.70.0210.00915.11
7.2.60.0130.01615.08
7.2.50.0180.00714.98
7.2.40.0560.00716.81
7.2.30.0150.00316.86
7.2.20.0090.01016.59
7.2.10.0090.00916.78
7.2.00.0070.01116.69
7.1.200.0050.00515.87
7.1.170.0120.00913.99
7.1.160.0030.01415.77
7.1.150.0070.00715.68
7.1.140.0000.01615.87
7.1.130.0110.00615.50
7.1.120.0080.00815.66
7.1.110.0100.00315.50
7.1.100.0100.00715.51
7.1.90.0110.00715.76
7.1.80.0070.01015.66
7.1.70.0080.00815.66
7.1.60.0310.01233.50
7.1.50.0230.01033.55
7.1.40.0260.01333.52
7.1.30.0230.01033.68
7.1.20.0190.01633.61
7.1.10.0060.01015.50
7.1.00.0030.01315.67

preferences:
47.98 ms | 401 KiB | 5 Q