3v4l.org

run code in 300+ PHP versions simultaneously
<?php $fields = []; $rowData = []; $fields[] = &$rowData['column1']; $fields[] = &$rowData['column2']; useRefs(...$fields); var_dump($rowData); useRefs2(...$fields); var_dump($rowData); function useRefs(&...$fields) { $fields[0] = 'col 1 value 1'; $fields[1] = 'col 2 value 1'; } function useRefs2(&...$fields) { $fields[0] = 'col 1 value 2'; $fields[1] = null; }

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)
8.3.60.0120.00316.61
8.3.50.0120.01021.23
8.3.40.0110.00418.56
8.3.30.0070.01419.09
8.3.20.0000.00720.16
8.3.10.0080.00021.90
8.3.00.0030.00519.68
8.2.180.0150.00018.16
8.2.170.0110.00322.96
8.2.160.0100.00320.38
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00419.78
8.2.110.0090.00022.02
8.2.100.0070.00419.64
8.2.90.0040.00419.27
8.2.80.0040.00418.04
8.2.70.0060.00317.50
8.2.60.0030.00518.05
8.2.50.0050.00318.07
8.2.40.0050.00518.16
8.2.30.0000.00718.05
8.2.20.0090.00017.67
8.2.10.0060.00317.95
8.2.00.0030.00517.93
8.1.280.0140.00725.92
8.1.270.0080.00020.38
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0080.00023.84
8.1.230.0080.00419.21
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0090.00017.22
8.1.190.0050.00317.55
8.1.180.0050.00318.80
8.1.170.0060.00318.51
8.1.160.0040.00422.13
8.1.150.0000.00718.48
8.1.140.0040.00417.24
8.1.130.0070.00017.84
8.1.120.0020.00517.34
8.1.110.0040.00417.45
8.1.100.0050.00317.30
8.1.90.0000.00717.39
8.1.80.0040.00417.25
8.1.70.0000.00717.28
8.1.60.0060.00317.48
8.1.50.0040.00417.57
8.1.40.0070.00317.56
8.1.30.0040.00417.66
8.1.20.0000.00817.68
8.1.10.0000.00717.61
8.1.00.0080.00017.55
8.0.300.0040.00418.77
8.0.290.0030.00416.93
8.0.280.0030.00318.23
8.0.270.0070.00017.20
8.0.260.0030.00317.11
8.0.250.0000.00716.90
8.0.240.0000.00716.95
8.0.230.0040.00316.75
8.0.220.0080.00016.89
8.0.210.0030.00316.89
8.0.200.0030.00316.98
8.0.190.0040.00416.79
8.0.180.0000.00716.80
8.0.170.0030.00516.87
8.0.160.0040.00416.93
8.0.150.0000.00816.81
8.0.140.0000.00716.84
8.0.130.0030.00313.22
8.0.120.0000.00816.74
8.0.110.0070.00016.72
8.0.100.0040.00416.83
8.0.90.0040.00416.72
8.0.80.0060.00916.87
8.0.70.0050.00316.80
8.0.60.0000.00716.85
8.0.50.0000.00716.69
8.0.30.0100.01116.89
8.0.20.0070.01317.40
8.0.10.0040.00416.84
8.0.00.0100.01016.72
7.4.330.0020.00215.03
7.4.320.0000.00716.46
7.4.300.0060.00016.42
7.4.290.0000.00716.62
7.4.280.0040.00416.50
7.4.270.0030.00316.49
7.4.260.0000.00716.51
7.4.250.0040.00416.57
7.4.240.0040.00316.54
7.4.230.0030.00616.50
7.4.220.0060.01616.41
7.4.210.0050.01216.66
7.4.200.0040.00416.38
7.4.160.0140.00516.49
7.4.150.0130.00317.40
7.4.140.0110.01017.86
7.4.130.0090.00916.54
7.4.120.0130.00516.38
7.4.110.0040.01316.68
7.4.100.0060.01216.38
7.4.90.0110.00716.59
7.4.80.0170.00619.39
7.4.70.0150.00416.48
7.4.60.0130.00316.54
7.4.50.0050.00316.51
7.4.40.0080.00916.23
7.4.30.0140.00416.44
7.4.00.0120.00315.07
7.3.330.0000.00913.13
7.3.320.0050.00013.31
7.3.310.0040.00416.34
7.3.300.0000.00716.13
7.3.290.0000.00716.25
7.3.280.0070.00916.28
7.3.270.0000.01817.40
7.3.260.0130.00316.22
7.3.250.0090.01116.38
7.3.240.0070.01016.41
7.3.230.0070.01016.48
7.3.210.0130.00716.23
7.3.200.0100.01019.39
7.3.190.0110.00616.43
7.3.180.0090.00616.42
7.3.170.0130.00916.27
7.3.160.0060.00916.39
7.2.330.0140.01116.71
7.2.320.0060.01316.73
7.2.310.0140.00916.36
7.2.300.0030.01416.72
7.2.290.0090.01216.61
7.2.00.0080.00519.47
7.1.100.0040.00818.13
7.1.70.0000.01117.21
7.1.60.0130.01019.86
7.1.50.0130.01016.96
7.1.00.0030.07722.27
7.0.200.0000.00816.85
7.0.60.0030.08319.87
7.0.50.0070.04717.83
7.0.40.0030.06020.02
7.0.30.0300.07320.26
7.0.20.0070.05020.07
7.0.10.0030.04720.26
7.0.00.0070.07320.22
5.6.280.0070.06321.10
5.6.210.0100.08020.52
5.6.200.0100.07318.19
5.6.190.0100.05020.55
5.6.180.0270.08320.69
5.6.170.0270.05320.54
5.6.160.0170.07020.71
5.6.150.0000.04318.18
5.6.140.0130.03718.18
5.6.130.0070.06718.14
5.6.120.0100.07721.10
5.6.110.0130.07720.97
5.6.100.0070.08321.07
5.6.90.0070.08721.01
5.6.80.0000.04720.36
5.5.350.0070.08320.46
5.5.340.0130.05718.10
5.5.330.0100.05020.19
5.5.320.3970.04020.34
5.5.310.0400.06720.34
5.5.300.0170.07017.95
5.5.290.0030.06018.06
5.5.280.0070.04020.88
5.5.270.0070.05020.85
5.5.260.0170.07020.96
5.5.250.0070.07320.49
5.5.240.0070.05020.25
5.4.450.0170.04019.44
5.4.440.0870.04019.46
5.4.430.0030.06719.36
5.4.420.0200.04719.21
5.4.410.0130.05018.99
5.4.400.0170.05018.82
5.4.390.0100.05318.69
5.4.380.0100.07018.81
5.4.370.0100.05018.78
5.4.360.0170.06318.81
5.4.350.0070.06018.78
5.4.340.0130.07018.80
5.4.320.0300.05718.74
5.4.310.0100.05018.46
5.4.300.0070.05318.50
5.4.290.0130.05018.59
5.4.280.0100.05318.73
5.4.270.0130.05318.83
5.4.260.0130.05318.78
5.4.250.0170.06018.63
5.4.240.0070.05718.52
5.4.230.0030.06318.63
5.4.220.0170.04718.68
5.4.210.0000.06018.49
5.4.200.0070.05316.56
5.4.190.0100.05718.58
5.4.180.0070.06018.57
5.4.170.0170.06718.82
5.4.160.0100.07318.68
5.4.150.0200.05718.59
5.4.140.0200.05716.19
5.4.130.0170.05316.29
5.4.120.0130.05016.23
5.4.110.0030.05316.25
5.4.100.0130.05716.29
5.4.90.0230.04016.19
5.4.80.0030.06016.42
5.4.70.0130.06016.41
5.4.60.0070.06016.39
5.4.50.0070.05016.18
5.4.40.0130.04716.18
5.4.30.0030.05716.38
5.4.20.0100.05316.20
5.4.10.0130.05316.39
5.4.00.0070.05015.77
5.3.290.0100.07014.63
5.3.280.0100.05314.49
5.3.270.0130.05314.52
5.3.260.0130.06014.51
5.3.250.0100.05314.56
5.3.240.0070.05714.63
5.3.230.0130.07014.54
5.3.220.0070.07714.64
5.3.210.0170.05014.48
5.3.200.0130.06714.50
5.3.190.0170.05014.46
5.3.180.0130.05714.51
5.3.170.0170.06714.61
5.3.160.0070.06014.56
5.3.150.0070.05714.46
5.3.140.0100.05314.55
5.3.130.0070.06014.58
5.3.120.0070.05714.54
5.3.110.0200.04714.58
5.3.100.0100.05014.04
5.3.90.0070.05314.05
5.3.80.0130.05013.93
5.3.70.0130.05313.99
5.3.60.0130.06313.99
5.3.50.0130.05313.94
5.3.40.0200.06013.84
5.3.30.0130.04314.01
5.3.20.0100.04713.81
5.3.10.0070.05313.66
5.3.00.0170.04313.56
5.2.170.0100.04011.15
5.2.160.0070.04011.13
5.2.150.0070.06311.20
5.2.140.0070.04711.17
5.2.130.0170.04311.14
5.2.120.0000.05711.13
5.2.110.0070.04011.15
5.2.100.0170.04711.06
5.2.90.0130.04711.02
5.2.80.0030.06011.08
5.2.70.0100.03711.04
5.2.60.0000.05011.00
5.2.50.0130.04011.01
5.2.40.0200.04310.96
5.2.30.0070.05711.01
5.2.20.0100.05010.91
5.2.10.0130.04010.85
5.2.00.0030.05010.75
5.1.60.0030.03710.11
5.1.50.0030.03710.06
5.1.40.0130.02710.00
5.1.30.0070.03710.45
5.1.20.0070.05710.36
5.1.10.0030.05710.09
5.1.00.0130.04710.13
5.0.50.0130.0338.61
5.0.40.0030.0438.46
5.0.30.0130.0538.20
5.0.20.0070.0338.27
5.0.10.0070.0238.28
5.0.00.0100.0408.19
4.4.90.0070.0205.95
4.4.80.0000.0305.81
4.4.70.0100.0175.86
4.4.60.0070.0205.86
4.4.50.0030.0235.88
4.4.40.0030.0435.87
4.4.30.0100.0235.93
4.4.20.0070.0275.92
4.4.10.0030.0305.95
4.4.00.0070.0405.85
4.3.110.0000.0335.83
4.3.100.0030.0305.87
4.3.90.0030.0235.91
4.3.80.0000.0405.87
4.3.70.0030.0205.82
4.3.60.0070.0175.78
4.3.50.0070.0205.79
4.3.40.0070.0335.80
4.3.30.0030.0274.57
4.3.20.0070.0204.64
4.3.10.0030.0274.59
4.3.00.0000.01715.60

preferences:
63.01 ms | 401 KiB | 5 Q