3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=1; $b=2; $c=3; var_dump(!isset($a, $b, $c));

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)
8.3.40.0070.00718.42
8.3.30.0100.00318.94
8.3.20.0070.00020.25
8.3.10.0040.00423.64
8.3.00.0030.00718.90
8.2.170.0030.01022.96
8.2.160.0000.01520.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00319.77
8.2.110.0000.00921.03
8.2.100.0090.00318.22
8.2.90.0000.00719.09
8.2.80.0000.00817.97
8.2.70.0040.00418.04
8.2.60.0000.00818.09
8.2.50.0000.00918.10
8.2.40.0060.00319.34
8.2.30.0000.00719.11
8.2.20.0070.00017.63
8.2.10.0070.00018.04
8.2.00.0040.00417.75
8.1.270.0000.00718.86
8.1.260.0040.00426.35
8.1.250.0150.00428.09
8.1.240.0030.00622.14
8.1.230.0040.00720.82
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0000.00817.35
8.1.190.0030.00517.11
8.1.180.0050.00318.10
8.1.170.0040.00420.91
8.1.160.0080.00019.02
8.1.150.0040.00418.81
8.1.140.0000.00717.44
8.1.130.0040.00417.43
8.1.120.0000.00717.50
8.1.110.0030.00517.49
8.1.100.0000.00717.41
8.1.90.0000.00717.43
8.1.80.0030.00517.48
8.1.70.0050.00317.48
8.1.60.0050.00217.59
8.1.50.0030.00517.41
8.1.40.0090.00317.46
8.1.30.0030.00517.66
8.1.20.0040.00417.66
8.1.10.0000.00717.48
8.1.00.0000.00717.21
8.0.300.0050.00219.68
8.0.290.0000.00716.75
8.0.280.0000.00718.30
8.0.270.0030.00317.24
8.0.260.0030.00316.82
8.0.250.0030.00516.81
8.0.240.0030.00516.98
8.0.230.0000.00716.79
8.0.220.0030.00316.86
8.0.210.0000.00716.79
8.0.200.0030.00517.00
8.0.190.0040.00416.91
8.0.180.0000.00816.90
8.0.170.0000.00816.79
8.0.160.0000.00716.96
8.0.150.0000.00816.72
8.0.140.0030.00616.81
8.0.130.0030.00313.34
8.0.120.0050.00316.66
8.0.110.0080.00016.81
8.0.100.0040.00416.76
8.0.90.0000.00816.78
8.0.80.0180.00316.80
8.0.70.0040.00416.86
8.0.60.0050.00216.85
8.0.50.0000.00716.74
8.0.30.0070.01516.75
8.0.20.0090.01017.40
8.0.10.0040.00416.96
8.0.00.0070.01116.81
7.4.330.0000.00515.09
7.4.320.0030.00316.57
7.4.300.0050.00216.59
7.4.290.0000.00616.56
7.4.280.0050.00316.59
7.4.270.0000.00716.47
7.4.260.0030.00316.61
7.4.250.0060.00316.45
7.4.240.0040.00416.55
7.4.230.0030.00316.46
7.4.220.0140.00716.35
7.4.210.0210.00016.68
7.4.200.0040.00316.49
7.4.160.0030.01316.36
7.4.150.0060.01217.40
7.4.140.0060.01217.86
7.4.130.0120.00616.54
7.4.120.0080.00816.38
7.4.110.0140.01016.47
7.4.100.0070.01016.45
7.4.90.0100.00716.60
7.4.80.0130.00319.39
7.4.70.0030.01416.45
7.4.60.0030.01316.55
7.4.50.0000.00816.56
7.4.40.0060.00916.30
7.4.30.0130.00316.40
7.4.10.0130.00315.01
7.4.00.0050.01314.67
7.3.330.0040.00312.84
7.3.320.0030.00312.89
7.3.310.0000.00715.95
7.3.300.0070.00016.16
7.3.290.0100.00516.16
7.3.280.0120.00816.09
7.3.270.0100.00617.40
7.3.260.0100.01316.36
7.3.250.0110.00716.25
7.3.240.0090.00916.38
7.3.230.0060.01016.39
7.3.210.0140.00316.20
7.3.200.0090.00919.39
7.3.190.0070.00916.29
7.3.180.0060.01316.34
7.3.170.0060.01016.48
7.3.160.0080.00816.30
7.3.130.0130.00615.02
7.3.120.0060.01214.65
7.3.110.0030.01414.98
7.3.100.0140.00414.61
7.3.90.0070.01014.88
7.3.80.0040.00714.24
7.3.70.0100.00714.55
7.3.60.0000.01214.73
7.3.50.0030.00914.70
7.3.40.0000.01214.34
7.3.30.0030.01314.72
7.3.20.0040.01116.34
7.3.10.0030.00716.54
7.3.00.0000.01316.24
7.2.330.0180.01516.48
7.2.320.0070.01416.29
7.2.310.0080.00916.28
7.2.300.0000.01816.37
7.2.290.0090.00916.41
7.2.260.0070.00714.99
7.2.250.0040.01515.11
7.2.240.0060.01114.88
7.2.230.0050.00514.87
7.2.220.0000.01615.15
7.2.210.0000.00914.90
7.2.200.0090.00614.98
7.2.190.0000.01314.87
7.2.180.0080.00414.82
7.2.170.0030.00714.68
7.2.160.0040.01114.92
7.2.150.0030.00916.34
7.2.140.0060.00616.87
7.2.130.0100.00716.95
7.2.120.0040.01116.73
7.2.110.0040.00816.80
7.2.100.0000.01216.83
7.2.90.0000.01316.70
7.2.80.0030.01416.74
7.2.70.0040.01116.56
7.2.60.0050.00917.03
7.2.50.0070.01016.68
7.2.40.0000.01216.87
7.2.30.0000.01416.55
7.2.20.0040.00716.61
7.2.10.0100.00316.54
7.2.00.0030.01118.05
7.1.330.0070.00715.83
7.1.320.0030.01015.84
7.1.310.0060.00615.29
7.1.300.0100.00015.67
7.1.290.0080.00415.80
7.1.280.0060.00615.73
7.1.270.0060.00615.43
7.1.260.0090.00615.47
7.1.250.0090.00315.80
7.1.240.0030.01015.59
7.1.230.0000.01115.74
7.1.220.0040.01115.55
7.1.210.0040.01115.67
7.1.200.0040.00815.42
7.1.190.0040.00415.55
7.1.180.0060.00615.80
7.1.170.0070.00715.49
7.1.160.0030.00715.59
7.1.150.0030.01015.80
7.1.140.0090.00015.67
7.1.130.0060.00615.75
7.1.120.0070.00715.42
7.1.110.0100.00315.82
7.1.100.0030.00916.68
7.1.90.0060.00915.80
7.1.80.0100.00615.87
7.1.70.0080.00416.26
7.1.60.0110.00617.45
7.1.50.0050.01216.31
7.1.40.0100.00315.57
7.1.30.0040.00715.63
7.1.20.0030.00915.56
7.1.10.0040.00815.56
7.1.00.0050.03919.16
7.0.330.0100.00315.49
7.0.320.0070.00715.23
7.0.310.0090.00615.06
7.0.300.0040.01115.17
7.0.290.0000.01215.07
7.0.280.0080.00415.51
7.0.270.0040.01215.29
7.0.260.0070.00715.27
7.0.250.0040.00415.02
7.0.240.0030.00615.25
7.0.230.0030.01015.22
7.0.220.0060.00615.35
7.0.210.0040.01415.27
7.0.200.0050.00415.98
7.0.190.0050.00515.37
7.0.180.0110.00315.49
7.0.170.0030.01015.35
7.0.160.0100.00315.28
7.0.150.0030.00615.43
7.0.140.0040.02218.61
7.0.130.0030.00815.54
7.0.120.0100.00315.27
7.0.110.0070.02717.68
7.0.100.0060.04317.66
7.0.90.0050.02817.75
7.0.80.0060.04917.65
7.0.70.0080.04117.68
7.0.60.0030.04917.71
7.0.50.0080.04517.78
7.0.40.0050.03216.85
7.0.30.0070.04116.82
7.0.20.0050.04316.90
7.0.10.0050.03916.74
7.0.00.0080.04116.73
5.6.400.0040.00713.98
5.6.390.0110.00014.41
5.6.380.0030.01013.95
5.6.370.0040.01113.96
5.6.360.0030.01014.43
5.6.350.0040.00714.09
5.6.340.0090.00614.33
5.6.330.0120.00014.66
5.6.320.0000.01414.22
5.6.310.0040.01214.21
5.6.300.0040.00714.24
5.6.290.0070.00714.29
5.6.280.0050.04117.52
5.6.270.0000.01314.27
5.6.260.0030.04417.41
5.6.250.0070.04217.41
5.6.240.0020.04917.44
5.6.230.0130.04517.46
5.6.220.0120.03417.38
5.6.210.0080.04317.38
5.6.200.0080.04217.66
5.6.190.0100.04317.72
5.6.180.0050.04517.68
5.6.170.0100.04517.57
5.6.160.0030.04917.58
5.6.150.0020.04817.66
5.6.140.0050.04517.54
5.6.130.0100.02717.67
5.6.120.0030.04217.50
5.6.110.0110.04117.67
5.6.100.0150.03517.62
5.6.90.0050.04717.58
5.6.80.0100.03917.29
5.6.70.0050.04117.26
5.6.60.0090.04217.13
5.6.50.0060.04117.34
5.6.40.0070.04017.47
5.6.30.0080.04217.28
5.6.20.0060.04517.21
5.6.10.0070.03517.42
5.6.00.0100.04117.24
5.5.380.0120.03517.33
5.5.370.0030.04417.23
5.5.360.0110.04217.31
5.5.350.0080.04417.14
5.5.340.0080.04517.63
5.5.330.0100.04517.70
5.5.320.0030.04917.38
5.5.310.0030.03417.45
5.5.300.0100.03917.67
5.5.290.0100.04017.48
5.5.280.0090.02617.42
5.5.270.0090.04317.46
5.5.260.0050.04517.42
5.5.250.0070.04317.37
5.5.240.0040.04717.07
5.5.230.0060.04217.09
5.5.220.0090.03817.04
5.5.210.0070.04217.26
5.5.200.0120.03916.97
5.5.190.0080.04317.02
5.5.180.0020.03517.13
5.5.170.0070.00314.29
5.5.160.0070.04017.22
5.5.150.0060.04016.99
5.5.140.0070.04517.20
5.5.130.0030.03017.13
5.5.120.0060.02317.30
5.5.110.0090.04017.16
5.5.100.0050.04417.06
5.5.90.0100.03417.10
5.5.80.0020.02617.18
5.5.70.0020.02517.12
5.5.60.0070.04216.95
5.5.50.0070.04316.91
5.5.40.0100.04016.98
5.5.30.0070.03817.06
5.5.20.0050.03817.02
5.5.10.0100.03616.90
5.5.00.0070.02717.13
5.4.450.0030.04715.03
5.4.440.0080.04015.19
5.4.430.0030.02615.17
5.4.420.0060.02115.11
5.4.410.0070.03715.10
5.4.400.0030.04314.89
5.4.390.0030.04115.00
5.4.380.0050.04214.88
5.4.370.0070.04114.82
5.4.360.0050.02514.87
5.4.350.0150.03015.04
5.4.340.0080.02314.91
5.4.330.0000.01010.86
5.4.320.0040.02614.81
5.4.310.0030.04214.80
5.4.300.0050.02414.80
5.4.290.0030.04514.88
5.4.280.0050.04314.97
5.4.270.0020.03714.97
5.4.260.0050.04114.90
5.4.250.0030.04014.96
5.4.240.0120.02214.97
5.4.230.0050.04114.91
5.4.220.0080.03814.90
5.4.210.0050.04414.81
5.4.200.0050.03515.00
5.4.190.0050.04314.93
5.4.180.0030.03915.10
5.4.170.0030.04314.90
5.4.160.0100.03615.03
5.4.150.0070.03514.80
5.4.140.0100.03813.74
5.4.130.0070.03813.54
5.4.120.0030.03813.43
5.4.110.0050.04213.57
5.4.100.0000.04313.57
5.4.90.0060.03713.66
5.4.80.0050.04213.51
5.4.70.0000.03213.71
5.4.60.0060.03913.61
5.4.50.0090.03513.57
5.4.40.0060.02213.55
5.4.30.0050.04013.49
5.4.20.0060.02813.60
5.4.10.0050.03013.61
5.4.00.0080.02013.23
5.3.290.0000.06714.68
5.3.280.0030.04714.61
5.3.270.0030.07714.50
5.3.260.0030.06714.49
5.3.250.0030.07714.49
5.3.240.0100.07714.53
5.3.230.0130.06714.49
5.3.220.0070.06714.41
5.3.210.0130.07014.63
5.3.200.0070.07014.66
5.3.190.0070.07314.44
5.3.180.0070.07014.58
5.3.170.0070.08014.42
5.3.160.0100.07014.41
5.3.150.0070.04014.48
5.3.140.0070.08014.55
5.3.130.0030.05014.43
5.3.120.0070.07014.47
5.3.110.0130.07014.33
5.3.100.0070.07713.90
5.3.90.0100.05313.89
5.3.80.0130.06013.84
5.3.70.0100.07714.07
5.3.60.0030.04013.94
5.3.50.0130.03313.79
5.3.40.0100.07313.96
5.3.30.0100.06713.78
5.3.20.0030.08013.76
5.3.10.0000.07313.71
5.3.00.0000.07013.46
5.2.170.0000.06711.93
5.2.160.0070.04311.93
5.2.150.0030.06011.93
5.2.140.0070.06311.93
5.2.130.0130.05011.93
5.2.120.0030.06011.93
5.2.110.0100.04011.93
5.2.100.0030.06011.93
5.2.90.0030.03711.93
5.2.80.0100.05711.93
5.2.70.0070.05711.93
5.2.60.0070.05711.93
5.2.50.0070.06011.93
5.2.40.0100.05311.93
5.2.30.0170.05311.93
5.2.20.0000.06711.93
5.2.10.0030.05711.93
5.2.00.0170.05011.93
5.1.60.0030.05711.93
5.1.50.0030.03711.93
5.1.40.0030.03011.93
5.1.30.0100.05311.93
5.1.20.0100.05011.93
5.1.10.0030.05711.93
5.1.00.0070.05311.93
5.0.50.0130.03711.93
5.0.40.0100.03711.93
5.0.30.0070.03711.93
5.0.20.0030.04011.93
5.0.10.0070.04011.93
5.0.00.0070.06311.93
4.4.90.0000.03711.93
4.4.80.0000.03711.93
4.4.70.0030.03711.93
4.4.60.0000.03311.93
4.4.50.0000.03711.93
4.4.40.0070.05011.93
4.4.30.0030.03711.93
4.4.20.0000.04011.93
4.4.10.0100.02311.93
4.4.00.0000.05711.93
4.3.110.0030.03311.93
4.3.100.0030.03311.93
4.3.90.0070.03011.93
4.3.80.0070.05011.93
4.3.70.0000.03711.93
4.3.60.0030.03711.93
4.3.50.0030.03311.93
4.3.40.0030.05011.93
4.3.30.0000.03311.93
4.3.20.0000.03711.93
4.3.10.0000.03711.93
4.3.00.0000.03311.93

preferences:
50.22 ms | 400 KiB | 5 Q