3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = count(get_defined_vars()); $bla = 'beta'; $cla = 'gamma'; $undef; @$nothing = $undef; $c = get_defined_vars(); //@xdebug_debug_zval('nothing'); //echo 'Declared vars:<br>'; //var_dump(xdebug_get_declared_vars()); echo 'Defined vars:<br>'; var_dump(array_slice($c, $a + 1));

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)
8.3.60.0120.00316.48
8.3.50.0110.01121.14
8.3.40.0090.00618.83
8.3.30.0140.00718.44
8.3.20.0040.00420.33
8.3.10.0060.00323.66
8.3.00.0040.00423.44
8.2.180.0170.00316.75
8.2.170.0040.01122.96
8.2.160.0130.00022.25
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0060.00317.50
8.2.110.0070.00320.34
8.2.100.0110.00017.75
8.2.90.0040.00419.17
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0050.00317.80
8.2.50.0080.00018.07
8.2.40.0030.00621.07
8.2.30.0030.00519.91
8.2.20.0000.00717.81
8.2.10.0040.00418.23
8.2.00.0000.00918.16
8.1.280.0070.00725.92
8.1.270.0080.00020.33
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00821.02
8.1.230.0030.00817.54
8.1.220.0040.00417.76
8.1.210.0000.00918.77
8.1.200.0060.00317.23
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0080.00018.58
8.1.160.0040.00421.97
8.1.150.0070.00018.94
8.1.140.0040.00417.33
8.1.130.0070.00017.74
8.1.120.0040.00417.54
8.1.110.0040.00417.43
8.1.100.0000.00717.46
8.1.90.0070.00017.51
8.1.80.0070.00017.45
8.1.70.0070.00017.46
8.1.60.0000.01017.54
8.1.50.0000.00917.52
8.1.40.0050.00317.48
8.1.30.0030.00517.39
8.1.20.0040.00417.63
8.1.10.0030.00617.47
8.1.00.0030.00617.36
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.44
8.0.270.0070.00017.31
8.0.260.0030.00317.30
8.0.250.0040.00417.06
8.0.240.0000.00616.91
8.0.230.0070.00017.00
8.0.220.0000.00716.95
8.0.210.0040.00416.87
8.0.200.0000.00717.02
8.0.190.0070.00017.05
8.0.180.0080.00016.87
8.0.170.0050.00316.91
8.0.160.0000.00816.96
8.0.150.0000.00716.82
8.0.140.0030.00416.79
8.0.130.0000.00713.43
8.0.120.0040.00416.81
8.0.110.0070.00017.00
8.0.100.0040.00416.84
8.0.90.0030.00516.74
8.0.80.0130.01016.99
8.0.70.0050.00316.86
8.0.60.0040.00416.89
8.0.50.0050.00216.97
8.0.30.0110.00616.96
8.0.20.0110.00817.40
8.0.10.0040.00417.19
8.0.00.0100.01216.67
7.4.330.0050.00015.25
7.4.320.0000.00716.50
7.4.300.0000.00616.50
7.4.290.0030.00316.46
7.4.280.0080.00016.45
7.4.270.0050.00216.50
7.4.260.0000.00716.48
7.4.250.0040.00416.48
7.4.240.0000.00716.60
7.4.230.0000.00716.48
7.4.220.0120.00616.48
7.4.210.0070.01016.54
7.4.200.0000.00716.53
7.4.160.0130.00316.69
7.4.150.0130.00517.40
7.4.140.0120.00917.86
7.4.130.0130.00516.55
7.4.120.0070.01016.57
7.4.110.0090.00916.63
7.4.100.0030.02116.51
7.4.90.0100.00716.63
7.4.80.0000.01819.39
7.4.70.0070.01816.48
7.4.60.0150.00016.41
7.4.50.0030.00616.50
7.4.40.0100.00716.46
7.4.30.0140.00416.51
7.4.00.0110.00614.96
7.3.330.0030.00313.26
7.3.320.0050.00013.21
7.3.310.0000.00716.45
7.3.300.0030.00316.38
7.3.290.0030.00316.43
7.3.280.0090.01016.36
7.3.270.0040.01517.40
7.3.260.0100.01316.59
7.3.250.0110.00816.37
7.3.240.0110.00716.38
7.3.230.0130.01016.61
7.3.210.0130.00716.41
7.3.200.0030.01316.43
7.3.190.0090.01216.61
7.3.180.0080.00816.41
7.3.170.0110.00516.45
7.3.160.0090.01216.54
7.3.120.0070.01014.65
7.3.110.0030.01414.62
7.3.100.0080.00315.05
7.3.90.0060.00614.77
7.3.80.0030.01014.84
7.3.70.0030.00614.87
7.3.60.0040.01114.68
7.3.50.0040.00714.87
7.3.40.0040.00814.91
7.3.30.0070.00315.00
7.3.20.0040.00816.66
7.3.10.0030.01016.88
7.3.00.0000.00816.86
7.2.330.0050.01116.43
7.2.320.0070.01016.75
7.2.310.0080.01316.40
7.2.300.0090.00916.46
7.2.290.0060.01316.40
7.2.250.0070.01114.97
7.2.240.0090.00615.13
7.2.230.0080.00614.95
7.2.220.0040.00815.27
7.2.210.0070.00715.14
7.2.200.0000.00914.94
7.2.190.0000.01815.25
7.2.180.0040.01215.04
7.2.170.0060.00915.17
7.2.60.0040.01116.84
7.1.330.0100.00315.90
7.1.320.0000.01115.62
7.1.310.0060.00315.63
7.1.300.0040.00815.54
7.1.290.0030.01015.67
7.1.280.0060.00915.64
7.1.270.0000.01515.70
7.1.260.0090.00315.92
7.1.200.0040.00815.69
7.1.70.0060.00617.29
7.1.60.0130.01319.42
7.1.50.0230.01334.69
7.1.00.0030.07722.29
7.0.200.0080.00416.44
7.0.60.0030.08019.82
7.0.50.0070.04017.84
7.0.40.0100.08020.11
7.0.30.0230.04720.09
7.0.20.0270.05720.09
7.0.10.0130.08020.20
7.0.00.0000.08320.00
5.6.280.0070.04721.07
5.6.210.0000.04320.66
5.6.200.0070.03718.13
5.6.190.0030.04320.41
5.6.180.0330.03720.36
5.6.170.0230.04720.37
5.6.160.0130.07020.52
5.6.150.0070.03718.11
5.6.140.0100.04318.05
5.6.130.0030.08718.11
5.6.120.0070.08021.03
5.6.110.0130.06721.00
5.6.100.0170.07320.88
5.6.90.0100.04720.95
5.6.80.0070.04020.50
5.5.350.0200.07720.38
5.5.340.0030.08018.01
5.5.330.0030.09020.22
5.5.320.0430.05320.32
5.5.310.0200.04720.14
5.5.300.0100.07717.96
5.5.290.0030.04717.89
5.5.280.0070.07720.89
5.5.270.0200.07020.94
5.5.260.0070.05320.75
5.5.250.0030.05320.65
5.5.240.0070.07720.04
5.4.450.0200.05719.11
5.4.440.0800.05719.48
5.4.430.0900.05019.47
5.4.420.0770.06019.57
5.4.410.1100.06719.19
5.4.400.1100.05319.19
5.4.390.0870.06019.25
5.4.380.0970.04719.14
5.4.370.0800.05718.94
5.4.360.0830.05719.08
5.4.350.1030.05719.15
5.4.340.0870.06019.30
5.4.320.0800.06019.25
5.4.310.0900.05718.99
5.4.300.0930.05018.91
5.4.290.0870.05019.15
5.4.280.0770.06018.76
5.4.270.0830.05719.12
5.4.260.0900.04318.99
5.4.250.0900.05319.20
5.4.240.0700.05319.15
5.4.230.0770.07319.24
5.4.220.0800.06019.15
5.4.210.0730.05318.95
5.4.200.0870.05016.61
5.4.190.1100.03018.81
5.4.180.0700.06019.06
5.4.170.0670.06319.11
5.4.160.1100.04718.93
5.4.150.0670.06018.80
5.4.140.0730.05716.27
5.4.130.0970.06316.28
5.4.120.0730.05016.27
5.4.110.0730.05016.50
5.4.100.0870.05716.44
5.4.90.0770.05716.43
5.4.80.0870.05016.22
5.4.70.1030.04716.15
5.4.60.0900.05016.19
5.4.50.0730.06016.29
5.4.40.0930.05716.46
5.4.30.0730.04716.45
5.4.20.0730.06016.43
5.4.10.0970.04716.19
5.4.00.0930.05015.70
5.3.290.0570.07014.64
5.3.280.0630.06014.58
5.3.270.0630.06314.54
5.3.260.0700.05714.59
5.3.250.0900.05314.48
5.3.240.0800.06714.70
5.3.230.1100.04714.46
5.3.220.1030.04714.55
5.3.210.0770.06714.55
5.3.200.0800.05314.51
5.3.190.0830.04314.55
5.3.180.0670.05314.40
5.3.170.1000.04714.40
5.3.160.0700.05314.50
5.3.150.0730.06014.55
5.3.140.0770.06314.39
5.3.130.0900.05014.42
5.3.120.0870.05014.49
5.3.110.0870.07014.39
5.3.100.0930.05014.13
5.3.90.0730.05013.86
5.3.80.0900.06013.86
5.3.70.0900.05013.85
5.3.60.0900.05713.85
5.3.50.1130.04713.93
5.3.40.0830.06014.04
5.3.30.0100.05313.75
5.3.20.0030.05713.64
5.3.10.0270.05313.50
5.3.00.0630.05013.65
5.2.170.0830.04310.98
5.2.160.1000.05711.09
5.2.150.0930.05010.98
5.2.140.0230.04710.98
5.2.130.0100.05311.15
5.2.120.0130.05010.95
5.2.110.0530.03311.04
5.2.100.0900.04010.94
5.2.90.0600.05011.04
5.2.80.0670.04311.11
5.2.70.0600.04710.94
5.2.60.0600.04710.89
5.2.50.0700.04010.90
5.2.40.0600.03311.16
5.2.30.0470.04311.05
5.2.20.0370.05010.97
5.2.10.0500.03311.08
5.2.00.0530.03710.71
5.1.60.0570.02310.14
5.1.50.0430.03710.06
5.1.40.0470.0379.98
5.1.30.0600.02310.20
5.1.20.0570.03010.35
5.1.10.0530.03010.14
5.1.00.0530.0379.97
5.0.50.0270.0278.59
5.0.40.0330.0378.29
5.0.30.0300.0438.22
5.0.20.0370.0208.34
5.0.10.0330.0408.16
5.0.00.0370.0508.23
4.4.90.0300.0205.83
4.4.80.0370.0235.77
4.4.70.0270.0175.82
4.4.60.0270.0205.78
4.4.50.0270.0275.82
4.4.40.0300.0305.81
4.4.30.0230.0235.83
4.4.20.0230.0205.89
4.4.10.0200.0235.86
4.4.00.0230.0375.84
4.3.110.0230.0235.74
4.3.100.0230.0205.79
4.3.90.0270.0175.67
4.3.80.0300.0305.67
4.3.70.0200.0275.66
4.3.60.0200.0205.67
4.3.50.0270.0205.70
4.3.40.0330.0275.71
4.3.30.0130.0204.45
4.3.20.0170.0204.49
4.3.10.0070.0274.43
4.3.00.0070.0278.45

preferences:
64.92 ms | 401 KiB | 5 Q