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); $array['a'][2] = 0; } var_dump($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)
8.3.60.0160.00018.56
8.3.50.0070.00718.25
8.3.40.0110.00418.68
8.3.30.0070.00718.84
8.3.20.0020.00521.55
8.3.10.0040.00421.82
8.3.00.0120.00317.77
8.2.180.0080.00816.38
8.2.170.0120.00322.96
8.2.160.0110.00322.96
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0080.00319.45
8.2.120.0050.00326.35
8.2.110.0000.01021.00
8.2.100.0070.00417.66
8.2.90.0080.00017.96
8.2.80.0040.00418.22
8.2.70.0050.00317.91
8.2.60.0000.00917.93
8.2.50.0040.00418.34
8.2.40.0050.00220.61
8.2.30.0040.00419.22
8.2.20.0070.00017.99
8.2.10.0020.00518.17
8.2.00.0060.00318.18
8.1.280.0090.00625.92
8.1.270.0050.00323.84
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0060.00323.92
8.1.230.0070.00421.04
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0000.00817.48
8.1.190.0050.00317.22
8.1.180.0000.00818.10
8.1.170.0040.00418.65
8.1.160.0050.00318.87
8.1.150.0000.00718.93
8.1.140.0040.00417.61
8.1.130.0000.00720.71
8.1.120.0060.00317.39
8.1.110.0000.00817.36
8.1.100.0040.00317.46
8.1.90.0040.00417.46
8.1.80.0040.00417.47
8.1.70.0030.00617.33
8.1.60.0070.00317.65
8.1.50.0100.00017.41
8.1.40.0000.00917.56
8.1.30.0060.00317.56
8.1.20.0040.00417.54
8.1.10.0030.00517.50
8.1.00.0000.00817.44
8.0.300.0040.00419.77
8.0.290.0000.00716.63
8.0.280.0040.00418.45
8.0.270.0030.00317.16
8.0.260.0050.00317.25
8.0.250.0000.01016.86
8.0.240.0030.00316.98
8.0.230.0080.00016.94
8.0.220.0040.00416.92
8.0.210.0070.00016.76
8.0.200.0000.00716.86
8.0.190.0030.00516.96
8.0.180.0000.00816.84
8.0.170.0000.00816.87
8.0.160.0020.00516.82
8.0.150.0040.00416.72
8.0.140.0000.00716.87
8.0.130.0080.00013.33
8.0.120.0000.00716.89
8.0.110.0000.00716.92
8.0.100.0040.00416.74
8.0.90.0000.00716.84
8.0.80.0060.00916.84
8.0.70.0040.00416.95
8.0.60.0030.00516.79
8.0.50.0000.00716.83
8.0.30.0130.00717.02
8.0.20.0160.00317.40
8.0.10.0000.00716.84
8.0.00.0160.00216.75
7.4.330.0020.00215.55
7.4.320.0060.00016.44
7.4.300.0000.00616.49
7.4.290.0040.00416.45
7.4.280.0060.00316.48
7.4.270.0000.00716.63
7.4.260.0000.00816.63
7.4.250.0030.00316.38
7.4.240.0000.00716.65
7.4.230.0030.00316.53
7.4.220.0030.00616.38
7.4.210.0090.00616.62
7.4.200.0030.00316.63
7.4.160.0090.00816.46
7.4.140.0110.00617.86
7.4.130.0060.01316.68
7.4.120.0130.00716.54
7.4.110.0090.00916.38
7.4.100.0110.01116.43
7.4.90.0140.00716.43
7.4.80.0170.00919.39
7.4.70.0100.00716.50
7.4.60.0080.01016.31
7.4.50.0080.00416.38
7.4.40.0000.01716.52
7.4.10.0070.00715.21
7.4.00.0090.00915.02
7.3.330.0000.00513.00
7.3.320.0030.00313.04
7.3.310.0090.00016.22
7.3.300.0040.00416.30
7.3.290.0070.00016.25
7.3.280.0030.01216.28
7.3.260.0100.00816.36
7.3.240.0150.00616.30
7.3.230.0060.01116.34
7.3.210.0140.00516.11
7.3.200.0070.01516.37
7.3.190.0090.00916.56
7.3.180.0030.01316.50
7.3.170.0080.00816.60
7.3.160.0090.01016.36
7.3.130.0100.00614.59
7.3.120.0080.00814.78
7.3.110.0100.00714.55
7.3.100.0080.00814.72
7.3.90.0080.01014.82
7.3.80.0090.00514.82
7.3.70.0050.00714.78
7.3.60.0040.01014.74
7.3.50.0030.01314.82
7.3.40.0080.00714.85
7.3.30.0070.00314.92
7.3.20.0060.00916.58
7.3.10.0070.01016.65
7.3.00.0090.00716.63
7.2.330.0070.01016.75
7.2.320.0070.01016.73
7.2.310.0140.00716.72
7.2.300.0040.01616.60
7.2.290.0060.01216.63
7.2.260.0060.01215.14
7.2.250.0100.00715.11
7.2.240.0070.01015.23
7.2.230.0110.00515.05
7.2.220.0050.01115.03
7.2.210.0040.01115.07
7.2.200.0000.01215.09
7.2.190.0030.01014.91
7.2.180.0070.01115.12
7.2.170.0040.01115.11
7.2.160.0060.01014.88
7.2.150.0070.01416.92
7.2.140.0100.01016.88
7.2.130.0050.01016.85
7.2.120.0080.00516.95
7.2.110.0090.00916.69
7.2.100.0070.00816.94
7.2.90.0070.00816.92
7.2.80.0050.01016.94
7.2.70.0060.01216.83
7.2.60.0060.00916.97
7.2.50.0050.00617.04
7.2.40.0410.01117.27
7.2.30.0370.00917.25
7.2.20.0340.01117.28
7.2.10.0340.01117.16
7.2.00.0510.00917.24
7.1.330.0050.01015.76
7.1.320.0070.00515.85
7.1.310.0080.00315.80
7.1.300.0050.01115.78
7.1.290.0030.01315.76
7.1.280.0070.00515.90
7.1.270.0100.00615.83
7.1.260.0080.00915.78
7.1.250.0060.00515.79
7.1.240.0030.00915.68
7.1.230.0070.01015.65
7.1.220.0040.01115.95
7.1.210.0070.00715.91
7.1.200.0060.00615.79
7.1.190.0070.01015.80
7.1.180.0070.00715.61
7.1.170.0060.00615.90
7.1.160.0520.01116.16
7.1.150.0470.00816.09
7.1.140.0620.00816.20
7.1.130.0460.01316.11
7.1.120.0760.01016.35
7.1.110.0550.00615.75
7.1.100.0480.00915.88
7.1.90.0660.00416.07
7.1.80.0430.00715.96
7.1.70.0480.00615.51
7.1.60.0520.01124.33
7.1.50.0530.01424.47
7.1.40.0820.00824.26
7.1.30.0820.00924.12
7.1.20.0780.01024.16
7.1.10.0470.00915.11
7.1.00.0440.01015.42
7.0.330.0030.00915.55
7.0.320.0030.00715.57
7.0.310.0100.00315.09
7.0.300.0040.00915.56
7.0.290.0030.01015.41
7.0.280.0120.00015.40
7.0.270.0070.00715.27
7.0.260.0100.00715.47
7.0.250.0070.01015.40
7.0.240.0030.01215.43
7.0.230.0060.00315.46
7.0.220.0070.00415.65
7.0.210.0120.00315.45
7.0.200.0000.01315.28
7.0.190.0110.00015.37
7.0.180.0040.01115.48
7.0.170.0030.01015.32
7.0.160.0080.00815.31
7.0.150.0080.00415.57
7.0.140.0030.00615.51
7.0.130.0040.01115.52
7.0.120.0030.01015.51
7.0.110.0040.01215.59
7.0.100.0070.00715.66
7.0.90.0030.00715.54
7.0.80.0000.01215.48
7.0.70.0060.00615.61
7.0.60.0080.00015.53
7.0.50.0090.00015.49
7.0.40.0040.00413.12
7.0.30.0100.00013.45
7.0.20.0000.00813.26
7.0.10.0040.01113.61
7.0.00.0070.00413.43
5.6.400.0040.00814.32
5.6.390.0060.00614.44
5.6.380.0030.00914.35
5.6.370.0060.01314.52
5.6.360.0150.00014.27
5.6.350.0030.01314.52
5.6.340.0040.00914.63
5.6.330.0100.00314.36
5.6.320.0090.00614.03
5.6.310.0040.00714.39
5.6.300.0070.00714.16
5.6.290.0090.00614.50
5.6.280.0000.01214.32
5.6.270.0110.00314.52
5.6.260.0090.00014.36
5.6.250.0070.00314.59
5.6.240.0030.01014.45
5.6.230.0030.01014.56
5.6.220.0090.00614.61
5.6.210.0040.01214.37
5.6.200.0060.00614.49
5.6.190.0110.00314.27
5.6.180.0070.01014.31
5.6.170.0080.00014.49
5.6.160.0040.01114.46
5.6.150.0000.01114.57
5.6.140.0050.00514.45
5.6.130.0000.01414.55
5.6.120.0030.00614.31
5.6.110.0070.01014.22
5.6.100.0090.00614.29
5.6.90.0130.00314.36
5.6.80.0070.01114.24
5.6.70.0060.01014.33
5.6.60.0070.00414.27
5.6.50.0000.01214.04
5.6.40.0030.00914.35
5.6.30.0030.01014.21
5.6.20.0040.01214.56
5.6.10.0100.00314.36
5.6.00.0030.01214.34

preferences:
54.37 ms | 401 KiB | 5 Q