3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [['a' => 1], ['a' => 3], ['a' => 5], ['a' => 7]]; foreach($a as &$item) { $item['b'] = $item['a'] + 1; } var_dump($a); echo "\n"; foreach($a as $item) { echo "{$item['a']} - {$item['b']}\n"; } echo "\n"; var_dump($a);

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)
8.4.120.0090.00920.37
8.4.110.0080.00418.98
8.4.100.0050.00317.76
8.4.90.0100.01020.54
8.4.80.0040.00517.95
8.4.70.0130.00817.54
8.4.60.0100.01018.63
8.4.50.0140.00619.60
8.4.40.0100.00719.32
8.4.30.0120.00417.76
8.4.20.0140.00720.64
8.4.10.0090.00019.51
8.3.250.0110.00818.84
8.3.240.0130.00716.56
8.3.230.0150.00616.46
8.3.220.0080.00618.90
8.3.210.0080.00116.53
8.3.200.0030.00616.62
8.3.190.0110.00816.97
8.3.180.0100.00516.57
8.3.170.0000.01018.81
8.3.160.0150.00318.31
8.3.150.0090.00920.60
8.3.140.0090.00016.50
8.3.130.0000.00816.80
8.3.120.0080.00020.94
8.3.110.0120.00620.94
8.3.100.0110.00324.06
8.3.90.0060.00326.77
8.3.80.0030.00617.97
8.3.70.0110.00716.25
8.3.60.0150.00018.28
8.3.50.0140.00318.28
8.3.40.0070.00718.93
8.3.30.0190.00018.59
8.3.20.0000.00921.60
8.3.10.0030.00518.71
8.3.00.0050.00519.38
8.2.290.0110.00716.88
8.2.280.0120.00920.32
8.2.270.0130.00717.08
8.2.260.0140.00418.08
8.2.250.0000.00818.29
8.2.240.0050.00518.74
8.2.230.0030.00622.58
8.2.220.0060.00337.54
8.2.210.0040.00426.77
8.2.200.0060.00316.38
8.2.190.0120.00616.58
8.2.180.0120.00318.32
8.2.170.0100.00722.96
8.2.160.0110.00419.41
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00321.00
8.2.110.0070.00319.27
8.2.100.0030.01017.84
8.2.90.0100.00017.75
8.2.80.0060.00317.97
8.2.70.0000.00817.67
8.2.60.0060.00318.13
8.2.50.0070.00018.22
8.2.40.0000.00819.46
8.2.30.0000.00819.29
8.2.20.0020.00517.99
8.2.10.0050.00219.36
8.2.00.0040.00418.16
8.1.330.0060.00516.25
8.1.320.0050.00716.19
8.1.310.0000.00816.88
8.1.300.0040.00416.42
8.1.290.0040.00430.84
8.1.280.0090.00625.92
8.1.270.0000.00720.24
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00522.74
8.1.230.0100.00017.82
8.1.220.0000.00817.79
8.1.210.0080.00018.77
8.1.200.0000.00817.36
8.1.190.0080.00017.35
8.1.180.0040.00418.10
8.1.170.0030.00618.55
8.1.160.0000.00718.82
8.1.150.0040.00418.80
8.1.140.0000.00820.13
8.1.130.0030.00620.30
8.1.120.0030.00517.30
8.1.110.0080.00017.47
8.1.100.0040.00417.45
8.1.90.0040.00417.34
8.1.80.0040.00417.46
8.1.70.0040.00417.36
8.1.60.0000.00917.45
8.1.50.0030.00917.52
8.1.40.0000.00817.48
8.1.30.0060.00317.50
8.1.20.0040.00417.48
8.1.10.0030.00517.48
8.1.00.0030.00517.52
8.0.300.0040.00418.77
8.0.290.0030.00616.63
8.0.280.0040.00418.45
8.0.270.0070.00017.16
8.0.260.0000.00618.43
8.0.250.0030.00316.97
8.0.240.0040.00417.01
8.0.230.0050.00316.97
8.0.220.0030.00316.77
8.0.210.0030.00516.94
8.0.200.0000.00716.96
8.0.190.0000.00716.83
8.0.180.0000.00816.88
8.0.170.0040.00416.88
8.0.160.0000.00716.84
8.0.150.0040.00416.83
8.0.140.0040.00416.83
8.0.130.0000.00613.35
8.0.120.0000.00816.86
8.0.110.0040.00416.90
8.0.100.0040.00416.93
8.0.90.0080.00016.77
8.0.80.0130.00216.84
8.0.70.0080.00016.88
8.0.60.0050.00316.77
8.0.50.0000.00716.75
8.0.30.0160.00417.09
8.0.20.0100.01317.40
8.0.10.0000.00716.95
8.0.00.0100.01316.84
7.4.330.0020.00215.55
7.4.320.0030.00316.50
7.4.300.0000.00716.41
7.4.290.0000.00716.57
7.4.280.0000.00816.49
7.4.270.0000.00616.50
7.4.260.0030.00316.58
7.4.250.0070.00016.50
7.4.240.0040.00416.59
7.4.230.0030.00316.41
7.4.220.0000.00816.61
7.4.210.0120.00516.57
7.4.200.0030.00316.29
7.4.160.0120.00616.48
7.4.140.0130.00817.86
7.4.130.0140.00816.76
7.4.120.0130.00716.37
7.4.110.0130.01016.37
7.4.100.0100.00716.64
7.4.90.0110.00716.53
7.4.80.0180.00619.39
7.4.70.0120.00616.38
7.4.60.0110.01116.66
7.4.50.0030.00716.52
7.4.40.0090.00816.58
7.4.00.0070.01015.13
7.3.330.0050.00013.26
7.3.320.0050.00013.15
7.3.310.0050.00216.29
7.3.300.0040.00416.15
7.3.290.0100.00716.32
7.3.280.0140.00516.32
7.3.260.0110.00716.44
7.3.240.0130.00616.47
7.3.230.0160.00316.48
7.3.210.0110.00816.56
7.3.200.0060.01216.21
7.3.190.0150.00616.39
7.3.180.0080.01516.43
7.3.170.0100.01016.43
7.3.160.0060.00916.57
7.3.20.0450.00614.54
7.3.10.1420.00714.64
7.3.00.0470.00315.02
7.2.330.0110.00816.74
7.2.320.0120.01216.80
7.2.310.0100.00716.46
7.2.300.0110.00816.82
7.2.290.0090.01216.58
7.2.150.0480.00315.06
7.2.140.0310.00615.05
7.2.130.0300.00315.12
7.2.120.0370.00614.80
7.2.110.0370.00714.73
7.2.100.0450.00014.96
7.2.90.0390.00015.16
7.2.80.0390.00014.59
7.2.70.0340.00614.91
7.2.60.0280.00914.85
7.2.50.0290.00614.82
7.2.40.0310.00714.93
7.2.30.0320.00614.94
7.2.20.0260.00715.06
7.2.10.0410.01014.91
7.2.00.0310.00914.67
7.1.250.0290.00613.94

preferences:
28.4 ms | 403 KiB | 5 Q