3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b =& $a; var_dump($a, $b);

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)
8.3.60.0150.00316.25
8.3.50.0120.00921.03
8.3.40.0070.00718.57
8.3.30.0070.01018.34
8.3.20.0040.00420.41
8.3.10.0090.00021.61
8.3.00.0040.00421.84
8.2.180.0100.01016.32
8.2.170.0040.01122.96
8.2.160.0090.00422.19
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00319.79
8.2.120.0050.00226.35
8.2.110.0080.00019.33
8.2.100.0080.00417.84
8.2.90.0040.00419.09
8.2.80.0060.00317.97
8.2.70.0040.00417.50
8.2.60.0050.00317.91
8.2.50.0040.00418.10
8.2.40.0040.00420.41
8.2.30.0040.00419.24
8.2.20.0050.00317.99
8.2.10.0000.00717.94
8.2.00.0040.00417.46
8.1.280.0100.00725.92
8.1.270.0000.00822.14
8.1.260.0080.00028.09
8.1.250.0060.00328.09
8.1.240.0030.00623.83
8.1.230.0040.00717.54
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0030.00617.23
8.1.190.0030.00517.23
8.1.180.0030.00518.10
8.1.170.0000.00818.90
8.1.160.0050.00322.12
8.1.150.0070.00020.29
8.1.140.0040.00419.40
8.1.130.0030.00317.63
8.1.120.0030.00317.43
8.1.110.0040.00417.38
8.1.100.0000.00817.42
8.1.90.0070.00017.37
8.1.80.0040.00417.45
8.1.70.0000.00817.35
8.1.60.0030.00717.43
8.1.50.0030.00617.34
8.1.40.0000.00817.39
8.1.30.0000.00817.60
8.1.20.0060.00317.54
8.1.10.0040.00417.30
8.1.00.0090.00017.33
8.0.300.0060.00318.77
8.0.290.0040.00716.63
8.0.280.0070.00018.28
8.0.270.0030.00317.07
8.0.260.0040.00417.11
8.0.250.0060.00016.75
8.0.240.0030.00316.77
8.0.230.0030.00316.86
8.0.220.0070.00016.82
8.0.210.0030.00316.86
8.0.200.0070.00416.89
8.0.190.0030.00616.80
8.0.180.0040.00416.86
8.0.170.0000.00716.76
8.0.160.0030.00616.82
8.0.150.0030.00516.86
8.0.140.0000.00816.68
8.0.130.0060.00013.22
8.0.120.0060.00316.70
8.0.110.0080.00016.90
8.0.100.0050.00316.61
8.0.90.0000.00716.70
8.0.80.0090.00616.88
8.0.70.0070.00016.68
8.0.60.0040.00416.88
8.0.50.0040.00416.83
8.0.30.0060.01316.80
8.0.20.0120.00617.40
8.0.10.0040.00416.95
8.0.00.0120.00616.55
7.4.330.0030.00315.55
7.4.320.0030.00316.50
7.4.300.0060.00016.54
7.4.290.0030.00316.43
7.4.280.0040.00416.51
7.4.270.0030.00316.48
7.4.260.0080.00016.39
7.4.250.0030.00316.33
7.4.240.0000.00716.44
7.4.230.0020.00516.62
7.4.220.0130.00316.44
7.4.210.0160.00016.46
7.4.200.0000.00816.31
7.4.160.0100.00716.37
7.4.150.0070.01117.40
7.4.140.0120.00817.86
7.4.130.0060.01316.36
7.4.120.0100.00916.33
7.4.110.0160.00316.52
7.4.100.0100.00716.56
7.4.90.0070.01016.20
7.4.80.0080.01119.39
7.4.70.0100.01316.32
7.4.60.0030.01516.48
7.4.50.0030.01216.13
7.4.40.0120.00616.45
7.4.30.0040.01316.47
7.4.00.0100.00814.79
7.3.330.0090.00013.02
7.3.320.0000.00513.00
7.3.310.0040.00416.09
7.3.300.0000.00716.14
7.3.290.0050.00916.18
7.3.280.0090.01116.11
7.3.270.0220.00017.40
7.3.260.0120.00916.06
7.3.250.0080.01016.20
7.3.240.0090.00816.22
7.3.230.0120.00616.45
7.3.210.0030.01316.14
7.3.200.0130.00316.39
7.3.190.0160.00016.16
7.3.180.0120.00416.21
7.3.170.0080.01116.10
7.3.160.0040.01316.34
7.3.120.0060.01214.65
7.3.110.0100.00314.51
7.3.100.0050.01114.75
7.3.90.0070.00714.65
7.3.80.0130.00514.36
7.3.70.0030.01414.59
7.3.60.0070.00814.65
7.3.50.0030.01214.54
7.3.40.0020.01114.62
7.3.30.0090.00614.60
7.3.20.0090.00316.49
7.3.10.0020.01316.47
7.3.00.0070.00816.52
7.2.330.0070.01016.49
7.2.320.0030.01416.43
7.2.310.0050.01116.19
7.2.300.0090.00916.36
7.2.290.0120.00616.32
7.2.250.0070.00814.80
7.2.240.0110.00714.67
7.2.230.0060.00814.76
7.2.220.0050.01014.89
7.2.210.0090.00614.87
7.2.200.0070.00914.77
7.2.190.0050.01014.73
7.2.180.0040.01314.86
7.2.170.0030.01314.83
7.2.160.0030.01214.57
7.2.150.0070.00716.79
7.2.140.0140.00016.74
7.2.130.0070.00316.80
7.2.120.0070.01016.70
7.2.110.0000.01316.73
7.2.100.0100.00616.59
7.2.90.0140.00316.84
7.2.80.0000.01016.78
7.2.70.0040.01116.75
7.2.60.0090.00916.70
7.2.50.0040.01416.43
7.2.40.0070.00316.73
7.2.30.0060.00916.76
7.2.20.0060.00616.74
7.2.10.0030.01316.48
7.2.00.0050.00917.88
7.1.330.0060.01015.79
7.1.320.0100.00315.67
7.1.310.0070.01015.92
7.1.300.0070.00515.53
7.1.290.0050.01015.79
7.1.280.0080.00615.68
7.1.270.0090.00415.60
7.1.260.0090.00015.66
7.1.250.0000.01115.59
7.1.240.0040.01115.87
7.1.230.0070.00715.41
7.1.220.0070.00715.53
7.1.210.0090.00615.80
7.1.200.0030.00715.82
7.1.190.0000.00915.79
7.1.180.0080.00615.45
7.1.170.0070.00715.58
7.1.160.0070.00715.57
7.1.150.0040.01115.88
7.1.140.0030.01015.81
7.1.130.0070.00715.80
7.1.120.0000.01015.66
7.1.110.0090.00315.70
7.1.100.0000.00915.78
7.1.90.0040.01115.92
7.1.80.0090.00015.57
7.1.70.0070.00516.40
7.1.60.0070.00516.21
7.1.50.0070.00415.82
7.1.40.0030.01315.62
7.1.30.0070.00715.57
7.1.20.0000.01415.72
7.1.10.0110.00015.72
7.1.00.0030.04219.00
7.0.330.0100.00615.17
7.0.320.0040.01115.03
7.0.310.0090.00615.39
7.0.300.0100.00715.28
7.0.290.0060.00615.54
7.0.280.0030.00515.54
7.0.270.0060.01015.38
7.0.260.0070.00315.45
7.0.250.0000.00915.04
7.0.240.0030.00715.38
7.0.230.0100.00015.34
7.0.220.0040.00815.13
7.0.210.0040.01115.40
7.0.200.0260.00214.89
7.0.190.0040.00415.16
7.0.180.0040.00415.50
7.0.170.0040.01115.32
7.0.160.0040.01115.49
7.0.150.0030.01015.50
7.0.140.0000.01415.33
7.0.130.0060.00615.23
7.0.120.0120.03018.77
7.0.110.0070.04618.53
7.0.100.0080.03218.71
7.0.90.0050.03518.57
7.0.80.0130.02418.69
7.0.70.0080.04318.83
7.0.60.0120.03818.67
7.0.50.0020.03918.81
7.0.40.0090.04617.75
7.0.30.0070.03917.85
7.0.20.0050.03117.76
7.0.10.0050.03317.85
7.0.00.0100.03817.80
5.6.400.0120.00314.41
5.6.390.0130.00314.15
5.6.380.0150.00014.29
5.6.370.0090.00614.50
5.6.360.0090.00614.29
5.6.350.0030.00514.02
5.6.340.0000.00814.05
5.6.330.0070.00314.48
5.6.320.0070.00714.04
5.6.310.0100.00014.05
5.6.300.0040.01114.24
5.6.290.0000.01114.14
5.6.280.0080.00614.50
5.6.270.0100.03117.51
5.6.260.0130.03717.44
5.6.250.0130.03017.54
5.6.240.0050.04517.52
5.6.230.0060.03417.71
5.6.220.0130.03017.58
5.6.210.0070.03817.58
5.6.200.0060.04117.52
5.6.190.0080.04217.54
5.6.180.0100.04117.46
5.6.170.0060.03817.65
5.6.160.0080.03317.45
5.6.150.0020.04217.57
5.6.140.0060.04417.65
5.6.130.0020.04517.61
5.6.120.0100.03717.40
5.6.110.0140.03617.44
5.6.100.0090.04017.49
5.6.90.0020.04617.47
5.6.80.0030.04217.18
5.6.70.0060.03817.21
5.6.60.0110.03717.31
5.6.50.0050.03317.33
5.6.40.0110.02517.09
5.6.30.0070.03217.18
5.6.20.0070.03217.10
5.6.10.0150.02217.28
5.6.00.0030.03217.00

preferences:
58.02 ms | 401 KiB | 5 Q