3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('a' => array(1, 2, 3, 4, 5), 'b' => array(6,7,8,9,10)); $ref = &$array; foreach ($array['a'] as $val) { var_dump($val); $array[2] = 0; } var_dump($ref); var_dump($array);

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)
8.3.60.0110.00716.50
8.3.50.0110.00318.18
8.3.40.0110.00318.59
8.3.30.0140.00018.80
8.3.20.0070.00021.81
8.3.10.0000.00821.72
8.3.00.0000.00818.04
8.2.180.0120.00316.38
8.2.170.0070.00722.96
8.2.160.0070.00722.96
8.2.150.0000.00824.18
8.2.140.0000.00724.66
8.2.130.0030.00719.28
8.2.120.0070.00026.35
8.2.110.0080.00321.02
8.2.100.0060.00617.91
8.2.90.0000.00818.03
8.2.80.0040.00418.22
8.2.70.0000.00917.93
8.2.60.0000.00817.79
8.2.50.0000.00718.10
8.2.40.0040.00420.54
8.2.30.0050.00319.37
8.2.20.0000.00718.16
8.2.10.0040.00418.03
8.2.00.0000.00918.13
8.1.280.0110.00425.92
8.1.270.0040.00423.96
8.1.260.0050.00326.35
8.1.250.0090.00028.09
8.1.240.0060.00323.84
8.1.230.0060.00620.90
8.1.220.0040.00417.74
8.1.210.0030.00620.57
8.1.200.0000.00817.47
8.1.190.0000.00917.23
8.1.180.0080.00018.10
8.1.170.0040.00418.56
8.1.160.0000.00718.77
8.1.150.0000.00719.07
8.1.140.0000.00717.75
8.1.130.0000.00720.79
8.1.120.0050.00317.53
8.1.110.0040.00417.49
8.1.100.0040.00417.47
8.1.90.0000.00817.43
8.1.80.0030.00317.46
8.1.70.0030.00617.47
8.1.60.0080.00417.50
8.1.50.0070.00417.52
8.1.40.0040.00417.35
8.1.30.0060.00317.62
8.1.20.0020.00517.49
8.1.10.0060.00317.39
8.1.00.0000.00717.41
8.0.300.0030.00519.98
8.0.290.0000.00716.63
8.0.280.0070.00018.38
8.0.270.0000.00717.18
8.0.260.0050.00317.21
8.0.250.0030.00716.92
8.0.240.0030.00316.95
8.0.230.0030.00316.96
8.0.220.0050.00216.91
8.0.210.0050.00316.84
8.0.200.0030.00316.84
8.0.190.0000.00816.93
8.0.180.0000.00716.90
8.0.170.0040.00416.77
8.0.160.0040.00416.89
8.0.150.0040.00416.81
8.0.140.0000.00716.89
8.0.130.0030.00313.36
8.0.120.0070.00016.75
8.0.110.0030.00516.89
8.0.100.0000.00816.72
8.0.90.0040.00416.93
8.0.80.0090.00616.85
8.0.70.0000.00816.70
8.0.60.0000.00716.95
8.0.50.0040.00416.93
8.0.30.0100.00717.00
8.0.20.0060.01217.40
8.0.10.0070.00017.00
8.0.00.0080.01016.59
7.4.330.0050.00016.77
7.4.320.0030.00316.51
7.4.300.0040.00416.42
7.4.290.0030.00316.64
7.4.280.0050.00316.59
7.4.270.0030.00316.44
7.4.260.0030.00316.57
7.4.250.0070.00016.41
7.4.240.0030.00316.52
7.4.230.0030.00316.54
7.4.220.0000.00916.54
7.4.210.0030.01116.63
7.4.200.0000.00716.67
7.4.160.0130.00216.52
7.4.140.0130.00517.86
7.4.130.0150.00416.53
7.4.120.0100.00916.49
7.4.110.0120.00516.53
7.4.100.0150.00316.43
7.4.90.0070.01116.55
7.4.80.0150.00419.39
7.4.70.0100.00616.58
7.4.60.0030.01416.27
7.4.50.0040.01116.40
7.4.40.0090.00916.38
7.4.00.0040.01414.98
7.3.330.0020.00213.18
7.3.320.0050.00313.12
7.3.310.0030.00516.38
7.3.300.0000.00716.30
7.3.290.0040.00416.22
7.3.280.0090.00816.25
7.3.260.0090.01016.45
7.3.240.0150.00416.36
7.3.230.0060.01216.43
7.3.210.0150.00316.22
7.3.200.0060.01016.45
7.3.190.0060.01016.49
7.3.180.0140.00416.30
7.3.170.0100.00716.50
7.3.160.0100.01116.32
7.2.330.0000.01716.66
7.2.320.0060.01216.49
7.2.310.0100.01016.71
7.2.300.0050.01416.69
7.2.290.0090.01216.51
7.2.60.0030.01016.64
7.2.40.0940.01618.02
7.2.30.1630.01518.15
7.2.20.1350.01317.63
7.2.10.1130.01317.84
7.2.00.1030.01217.89
7.1.200.0040.00815.85
7.1.160.1210.01416.70
7.1.150.1650.01016.77
7.1.140.1100.01416.58
7.1.130.0800.01016.63
7.1.120.0900.00916.83
7.1.110.1320.01116.30
7.1.100.0870.01216.01
7.1.90.0790.01016.34
7.1.80.0830.00916.11
7.1.70.0930.00715.39
7.1.60.1300.01733.27
7.1.50.1180.01533.14
7.1.40.1140.01332.54
7.1.30.1160.01332.64
7.1.20.2480.01632.81
7.1.10.0840.01214.76
7.1.00.1320.01214.89

preferences:
55.35 ms | 400 KiB | 5 Q