3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() { $reqs = array('11', '22', array('id' => 123, 'name' => 'ffff')); foreach ($reqs as &$req) { if (is_array($req)) { $req['name'] = 'dd'; //alter value } } echo '<pre>'; print_r($reqs); //values changed, ok echo '</pre>'; foreach ($reqs as $req) { echo '<pre>'; print_r($req); //the last value is '22', that is wrong. echo '</pre>'; } } foo();

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)
8.3.70.0070.01118.43
8.3.60.0100.01416.75
8.3.50.0130.00722.06
8.3.40.0070.00718.79
8.3.30.0070.00718.79
8.3.20.0030.00521.08
8.3.10.0030.00523.52
8.3.00.0070.00022.52
8.2.190.0060.00918.25
8.2.180.0090.01316.50
8.2.170.0070.01022.96
8.2.160.0070.00721.09
8.2.150.0000.00724.18
8.2.140.0070.00024.66
8.2.130.0050.00326.16
8.2.120.0030.00717.93
8.2.110.0030.00721.06
8.2.100.0060.00617.84
8.2.90.0000.00817.97
8.2.80.0060.00319.13
8.2.70.0120.00017.37
8.2.60.0000.00817.93
8.2.50.0040.00418.10
8.2.40.0000.00822.28
8.2.30.0050.00219.39
8.2.20.0040.00417.78
8.2.10.0040.00418.06
8.2.00.0040.00718.00
8.1.280.0120.00625.92
8.1.270.0090.00023.70
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.92
8.1.230.0040.00720.73
8.1.220.0090.00017.77
8.1.210.0050.00318.77
8.1.200.0080.00017.35
8.1.190.0040.00417.38
8.1.180.0080.00018.10
8.1.170.0000.00818.68
8.1.160.0050.00222.05
8.1.150.0040.00418.87
8.1.140.0040.00419.57
8.1.130.0030.00317.70
8.1.120.0030.00317.42
8.1.110.0000.00717.34
8.1.100.0000.00717.38
8.1.90.0000.00717.34
8.1.80.0040.00417.34
8.1.70.0080.00017.45
8.1.60.0030.00617.50
8.1.50.0080.00017.56
8.1.40.0070.00017.58
8.1.30.0000.00817.55
8.1.20.0000.00717.57
8.1.10.0040.00417.61
8.1.00.0040.00417.52
8.0.300.0000.00720.04
8.0.290.0040.00416.75
8.0.280.0000.00718.45
8.0.270.0030.00317.14
8.0.260.0000.00617.25
8.0.250.0040.00416.86
8.0.240.0040.00416.95
8.0.230.0000.00816.88
8.0.220.0070.00016.92
8.0.210.0040.00416.86
8.0.200.0030.00316.99
8.0.190.0040.00416.94
8.0.180.0070.00016.88
8.0.170.0000.00816.92
8.0.160.0040.00316.91
8.0.150.0000.00716.80
8.0.140.0070.00016.76
8.0.130.0000.00613.32
8.0.120.0040.00416.86
8.0.110.0040.00416.72
8.0.100.0040.00416.94
8.0.90.0040.00416.77
8.0.80.0110.01116.91
8.0.70.0040.00416.84
8.0.60.0000.00716.96
8.0.50.0040.00416.86
8.0.30.0120.00617.06
8.0.20.0080.01317.40
8.0.10.0040.00416.90
8.0.00.0100.01116.59
7.4.330.0000.00515.08
7.4.320.0030.00316.50
7.4.300.0030.00316.63
7.4.290.0040.00416.40
7.4.280.0090.00316.61
7.4.270.0000.00716.48
7.4.260.0030.00316.58
7.4.250.0030.00516.48
7.4.240.0040.00416.62
7.4.230.0070.00016.61
7.4.220.0100.00916.60
7.4.210.0050.01016.62
7.4.200.0040.00416.38
7.4.160.0080.00816.48
7.4.150.0150.00317.40
7.4.140.0080.00917.86
7.4.130.0120.00516.46
7.4.120.0100.00716.41
7.4.110.0130.00316.62
7.4.100.0030.01316.50
7.4.90.0100.00616.46
7.4.80.0130.00519.39
7.4.70.0080.00816.38
7.4.60.0130.00316.60
7.4.50.0030.00916.36
7.4.40.0040.01216.36
7.4.30.0110.00616.44
7.4.00.0100.00715.04
7.3.330.0050.00013.18
7.3.320.0030.00313.31
7.3.310.0060.00316.18
7.3.300.0000.00816.38
7.3.290.0030.00316.38
7.3.280.0100.00616.35
7.3.270.0030.01317.40
7.3.260.0100.01416.40
7.3.250.0110.00616.40
7.3.240.0090.00916.45
7.3.230.0120.00416.54
7.3.210.0140.00816.61
7.3.200.0110.00716.49
7.3.190.0100.00716.49
7.3.180.0120.00716.54
7.3.170.0090.00916.70
7.3.160.0130.00316.48
7.2.330.0100.01016.60
7.2.320.0100.00716.45
7.2.310.0110.01116.67
7.2.300.0140.00316.44
7.2.290.0200.00316.71
7.2.60.0100.00717.04
7.2.00.0030.01019.04
7.1.200.0030.01015.70
7.1.70.0040.00717.08
7.1.60.0030.00917.12
7.1.00.0000.07722.43
7.0.200.0130.00714.84
7.0.100.0130.07020.09
7.0.90.0230.06320.04
7.0.80.0170.05720.04
7.0.70.0200.05319.95
7.0.60.0200.06319.99
7.0.50.0130.05720.43
7.0.40.0270.07020.36
7.0.30.0370.07320.32
7.0.20.0130.05720.32
7.0.10.0300.05320.30
7.0.00.0170.05320.41
5.6.250.0130.06720.75
5.6.240.0130.05720.64
5.6.230.0070.07020.61
5.6.220.0270.04020.74
5.6.210.0130.05320.71
5.6.200.0070.06321.15
5.6.190.0200.05321.07
5.6.180.0270.04721.20
5.6.170.0100.05721.09
5.6.160.0030.06721.18
5.6.150.0100.05721.13
5.6.140.0170.05020.99
5.6.130.0130.05721.16
5.6.120.0100.06021.06
5.6.110.0130.06321.20
5.6.100.0270.06021.08
5.6.90.0200.05021.19
5.6.80.0070.06720.50
5.6.70.0130.07020.45
5.6.60.0130.06720.55
5.6.50.0000.07020.50
5.6.40.0200.04320.45
5.6.30.0170.06320.46
5.6.20.0170.06020.49
5.6.10.0100.05320.38
5.6.00.0200.04320.52

preferences:
18.67 ms | 401 KiB | 5 Q