3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace some\amespace; class bar { function foo() { return "foo"; } } echo "blah: "; var_export (class_exists('bar', true));

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)
8.3.60.0100.00718.15
8.3.50.0080.01021.08
8.3.40.0040.01118.46
8.3.30.0070.01018.97
8.3.20.0000.00820.27
8.3.10.0030.00522.05
8.3.00.0040.00420.82
8.2.180.0120.00316.63
8.2.170.0040.01122.96
8.2.160.0140.00019.21
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0100.00726.16
8.2.120.0080.00019.64
8.2.110.0040.00421.98
8.2.100.0040.00719.26
8.2.90.0040.00419.08
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0060.00317.80
8.2.50.0000.00918.07
8.2.40.0000.00818.05
8.2.30.0040.00417.82
8.2.20.0020.00517.40
8.2.10.0000.00817.55
8.2.00.0050.00317.54
8.1.280.0170.00025.92
8.1.270.0080.00018.54
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00923.98
8.1.230.0080.00319.14
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0030.00617.10
8.1.190.0000.00717.41
8.1.180.0040.00418.39
8.1.170.0050.00218.50
8.1.160.0070.00022.18
8.1.150.0050.00218.57
8.1.140.0040.00417.28
8.1.130.0000.00817.71
8.1.120.0030.00417.39
8.1.110.0000.00717.28
8.1.100.0000.00717.31
8.1.90.0070.00017.23
8.1.80.0030.00517.34
8.1.70.0030.00317.34
8.1.60.0050.00617.43
8.1.50.0000.00817.37
8.1.40.0000.00817.43
8.1.30.0040.00417.41
8.1.20.0000.00817.45
8.1.10.0060.00317.45
8.1.00.0040.00417.23
8.0.300.0050.00218.77
8.0.290.0040.00417.04
8.0.280.0030.00318.33
8.0.270.0040.00417.04
8.0.260.0030.00616.66
8.0.250.0070.00016.72
8.0.240.0060.00316.78
8.0.230.0040.00416.72
8.0.220.0030.00316.79
8.0.210.0030.00316.69
8.0.200.0060.00016.80
8.0.190.0040.00416.85
8.0.180.0070.00016.75
8.0.170.0000.00716.74
8.0.160.0000.00716.70
8.0.150.0000.00716.66
8.0.140.0000.00816.74
8.0.130.0000.00513.18
8.0.120.0000.00816.83
8.0.110.0040.00416.75
8.0.100.0030.00316.58
8.0.90.0000.00716.75
8.0.80.0100.00616.66
8.0.70.0000.00816.56
8.0.60.0000.00716.70
8.0.50.0080.00016.74
8.0.30.0140.00717.01
8.0.20.0140.00717.40
8.0.10.0000.00716.76
8.0.00.0070.01216.51
7.4.330.0020.00215.00
7.4.320.0030.00316.45
7.4.300.0030.00316.47
7.4.290.0030.00616.47
7.4.280.0030.00316.25
7.4.270.0000.00716.38
7.4.260.0040.00416.36
7.4.250.0040.00416.47
7.4.240.0020.00416.31
7.4.230.0030.00316.26
7.4.220.0070.01016.33
7.4.210.0080.00816.44
7.4.200.0030.00316.37
7.4.190.0070.00016.47
7.4.160.0040.01216.36
7.4.150.0090.00917.40
7.4.140.0090.01317.86
7.4.130.0110.00816.46
7.4.120.0060.01116.25
7.4.110.0140.00316.41
7.4.100.0100.01116.23
7.4.90.0070.01016.22
7.4.80.0040.01419.39
7.4.70.0120.00616.34
7.4.60.0100.00616.34
7.4.50.0070.00016.48
7.4.40.0030.01422.77
7.4.30.0100.00716.36
7.4.10.0100.00715.00
7.4.00.0100.00514.82
7.3.330.0030.00312.96
7.3.320.0030.00313.16
7.3.310.0040.00416.04
7.3.300.0040.00416.15
7.3.290.0000.01416.18
7.3.280.0090.00616.14
7.3.270.0150.00717.40
7.3.260.0130.00316.15
7.3.250.0100.00716.39
7.3.240.0090.00616.18
7.3.230.0100.00716.39
7.3.210.0170.00016.26
7.3.200.0180.00619.39
7.3.190.0060.01516.52
7.3.180.0140.00316.46
7.3.170.0050.01116.27
7.3.160.0060.00916.21
7.3.130.0090.00914.39
7.3.120.0070.00814.55
7.3.110.0060.01214.58
7.3.100.0000.01614.57
7.3.90.0150.00014.77
7.3.80.0040.00714.58
7.3.70.0070.00714.54
7.3.60.0030.01014.49
7.3.50.0040.00714.87
7.3.40.0060.00614.51
7.3.30.0040.01114.78
7.3.20.0040.00816.49
7.3.10.0060.01016.60
7.3.00.0070.00816.37
7.2.330.0090.00916.66
7.2.320.0060.01016.28
7.2.310.0100.00716.53
7.2.300.0060.01016.59
7.2.290.0180.00316.54
7.2.260.0100.00615.07
7.2.250.0130.00614.85
7.2.240.0030.01315.17
7.2.230.0030.01214.80
7.2.220.0030.01214.76
7.2.210.0060.00615.20
7.2.200.0030.00614.66
7.2.190.0090.00614.86
7.2.180.0000.01114.71
7.2.170.0030.01014.61
7.2.160.0030.01315.03
7.2.150.0030.00916.90
7.2.140.0100.00316.86
7.2.130.0030.00716.92
7.2.120.0100.00616.98
7.2.110.0110.00416.98
7.2.100.0090.00616.84
7.2.90.0060.00316.80
7.2.80.0040.00716.78
7.2.70.0120.00316.59
7.2.60.0000.01016.91
7.2.50.0110.00416.81
7.2.40.0100.00316.99
7.2.30.0080.00616.71
7.2.20.0060.00916.71
7.2.10.0060.01216.84
7.2.00.0050.00717.95
7.1.330.0000.01515.44
7.1.320.0000.01115.70
7.1.310.0030.00915.75
7.1.300.0060.00615.76
7.1.290.0000.01715.52
7.1.280.0160.00015.62
7.1.270.0100.00315.54
7.1.260.0100.00315.81
7.1.250.0000.00815.28
7.1.240.0030.00715.80
7.1.230.0070.00315.62
7.1.220.0000.01315.30
7.1.210.0040.01115.55
7.1.200.0000.01415.58
7.1.190.0030.00615.78
7.1.180.0040.00415.50
7.1.170.0070.00715.71
7.1.160.0070.00715.71
7.1.150.0030.00915.65
7.1.140.0030.01015.57
7.1.130.0030.01215.63
7.1.120.0000.01415.45
7.1.110.0030.01015.89
7.1.100.0040.00916.83
7.1.90.0140.00015.79
7.1.80.0000.01415.59
7.1.70.0030.00816.21
7.1.60.0070.01017.71
7.1.50.0090.00716.26
7.1.40.0080.00015.40
7.1.30.0060.00315.45
7.1.20.0030.01215.64
7.1.10.0030.01015.57
7.1.00.0070.02919.05
7.0.330.0030.00815.12
7.0.320.0030.01015.29
7.0.310.0080.00415.16
7.0.300.0000.01215.38
7.0.290.0090.00315.20
7.0.280.0070.00315.33
7.0.270.0060.00615.30
7.0.260.0040.00715.52
7.0.250.0030.00915.22
7.0.240.0090.00615.13
7.0.230.0100.00315.45
7.0.220.0060.00615.22
7.0.210.0030.01015.33
7.0.200.0030.00716.04
7.0.190.0060.00615.43
7.0.180.0110.00414.98
7.0.170.0110.00415.47
7.0.160.0100.00315.49
7.0.150.0080.00315.17
7.0.140.0060.03918.65
7.0.130.0040.01115.52
7.0.120.0060.01015.34
7.0.110.0070.00315.05
7.0.100.0140.04017.63
7.0.90.0020.04617.66
7.0.80.0060.03817.63
7.0.70.0080.04017.55
7.0.60.0090.03917.69
7.0.50.0070.04317.75
7.0.40.0030.02916.68
7.0.30.0080.04316.72
7.0.20.0130.04116.72
7.0.10.0080.04016.79
7.0.00.0080.04316.66
5.6.400.0030.01314.35
5.6.390.0040.01114.04
5.6.380.0030.00714.21
5.6.370.0060.00613.85
5.6.360.0150.00014.20
5.6.350.0060.00614.01
5.6.340.0030.01214.36
5.6.330.0100.00314.03
5.6.320.0110.00414.23
5.6.310.0040.00714.42
5.6.300.0080.00814.45
5.6.290.0040.01114.00
5.6.280.0060.04017.71
5.6.270.0060.00914.61
5.6.260.0100.00714.47
5.6.250.0110.04517.44
5.6.240.0050.04617.45
5.6.230.0080.03317.47
5.6.220.0080.04017.35
5.6.210.0030.04817.28
5.6.200.0090.04017.78
5.6.190.0100.04117.63
5.6.180.0080.04317.66
5.6.170.0060.04417.67
5.6.160.0050.04217.63
5.6.150.0050.04917.69
5.6.140.0040.04417.52
5.6.130.0100.04517.69
5.6.120.0110.04117.66
5.6.110.0100.04517.47
5.6.100.0050.04917.70
5.6.90.0050.03017.56
5.6.80.0010.04817.18
5.6.70.0070.04517.36
5.6.60.0020.04917.29
5.6.50.0060.04317.31
5.6.40.0040.03417.23
5.6.30.0050.02717.18
5.6.20.0070.02217.25
5.6.10.0060.02617.22
5.6.00.0020.02917.22
5.5.380.0080.04117.40
5.5.370.0030.04717.37
5.5.360.0090.04217.26
5.5.350.0100.04017.18
5.5.340.0030.03017.38
5.5.330.0160.03317.34
5.5.320.0080.03517.51
5.5.310.0030.04117.68
5.5.300.0030.03217.50
5.5.290.0060.04717.50
5.5.280.0070.04717.49
5.5.270.0050.04817.25
5.5.260.0020.03517.42
5.5.250.0090.03217.49
5.5.240.0100.03817.09
5.5.230.0140.03717.01
5.5.220.0050.02517.11
5.5.210.0080.03817.05
5.5.200.0080.03517.13
5.5.190.0030.02517.06
5.5.180.0100.03317.15
5.5.170.0070.01114.19
5.5.160.0090.02117.20
5.5.150.0050.02217.17
5.5.140.0100.01816.80
5.5.130.0050.02017.20
5.5.120.0030.02616.95
5.5.110.0050.02317.23
5.5.100.0080.04217.15
5.5.90.0020.02317.16
5.5.80.0070.04117.14
5.5.70.0060.02117.08
5.5.60.0100.03517.00
5.5.50.0050.02317.00
5.5.40.0080.04017.12
5.5.30.0020.04017.08
5.5.20.0050.03917.20
5.5.10.0030.02717.03
5.5.00.0060.02117.24
5.4.450.0050.02815.91
5.4.440.0070.03515.87
5.4.430.0080.04015.82
5.4.420.0030.03515.78
5.4.410.0070.02515.68
5.4.400.0070.03915.60
5.4.390.0130.03615.59
5.4.380.0070.04015.71
5.4.370.0060.04115.66
5.4.360.0020.03215.75
5.4.350.0030.02015.58
5.4.340.0050.01915.66
5.4.330.0000.00712.29
5.4.320.0020.02515.76
5.4.310.0010.02315.75
5.4.300.0000.02415.66
5.4.290.0030.02115.75
5.4.280.0030.03015.71
5.4.270.0050.02315.71
5.4.260.0070.03115.70
5.4.250.0070.03815.66
5.4.240.0030.04015.71
5.4.230.0030.04015.69
5.4.220.0020.04415.75
5.4.210.0050.02315.59
5.4.200.0010.04115.59
5.4.190.0060.01815.56
5.4.180.0070.02015.66
5.4.170.0030.01815.68
5.4.160.0050.03215.71
5.4.150.0000.02815.58
5.4.140.0020.02214.35
5.4.130.0030.02014.35
5.4.120.0010.02114.32
5.4.110.0050.02014.38
5.4.100.0000.02314.36
5.4.90.0040.02014.38
5.4.80.0060.01814.37
5.4.70.0020.03314.37
5.4.60.0020.02514.30
5.4.50.0050.02014.32
5.4.40.0030.01814.34
5.4.30.0050.01814.36
5.4.20.0020.02214.35
5.4.10.0030.02314.33
5.4.00.0050.01814.08
5.3.290.0030.02213.48
5.3.280.0050.04313.49
5.3.270.0080.02213.48
5.3.260.0020.02513.44
5.3.250.0030.02313.47
5.3.240.0060.02013.43
5.3.230.0030.02513.44
5.3.220.0010.02513.46
5.3.210.0030.02313.42
5.3.200.0050.02013.42
5.3.190.0040.02213.45
5.3.180.0030.02013.41
5.3.170.0030.02613.41
5.3.160.0050.03513.40
5.3.150.0040.02213.43
5.3.140.0000.03813.38
5.3.130.0020.02713.38
5.3.120.0030.02013.41
5.3.110.0080.02613.39
5.3.100.0040.03113.27
5.3.90.0050.02113.27
5.3.80.0020.02513.27
5.3.70.0030.02313.27
5.3.60.0070.01813.27
5.3.50.0020.02613.27
5.3.40.0020.03413.27
5.3.30.0050.02013.27
5.3.20.0050.03713.27
5.3.10.0070.03713.27
5.3.00.0000.04013.27
5.2.170.0000.03314.24
5.2.160.0030.02714.24
5.2.150.0000.03714.24
5.2.140.0030.03014.24
5.2.130.0030.03714.24
5.2.120.0070.05314.24
5.2.110.0030.06314.24
5.2.100.0030.05714.24
5.2.90.0030.04014.24
5.2.80.0070.06314.24
5.2.70.0070.07714.24
5.2.60.0130.05314.24
5.2.50.0070.06014.24
5.2.40.0030.05714.24
5.2.30.0070.05714.24
5.2.20.0170.05314.24
5.2.10.0070.06014.24
5.2.00.0000.04714.24
5.1.60.0170.04314.24
5.1.50.0070.04714.24
5.1.40.0100.04714.24
5.1.30.0030.05714.24
5.1.20.0070.04714.24
5.1.10.0030.04314.24
5.1.00.0070.05714.24
5.0.50.0070.03714.24
5.0.40.0030.04314.24
5.0.30.0000.05714.24
5.0.20.0000.04714.24
5.0.10.0030.04314.24
5.0.00.0030.06014.24
4.4.90.0070.02714.24
4.4.80.0000.03714.24
4.4.70.0000.04014.24
4.4.60.0030.03714.24
4.4.50.0000.03314.24
4.4.40.0070.04314.24
4.4.30.0070.03014.24
4.4.20.0070.03014.24
4.4.10.0000.03714.24
4.4.00.0100.04014.24
4.3.110.0000.03714.24
4.3.100.0000.03714.24
4.3.90.0000.03714.24
4.3.80.0000.05714.24
4.3.70.0070.02714.24
4.3.60.0100.02714.24
4.3.50.0130.02714.24
4.3.40.0070.04014.24
4.3.30.0000.03014.24
4.3.20.0000.03714.24
4.3.10.0030.03314.24
4.3.00.0000.04014.24

preferences:
48.68 ms | 401 KiB | 5 Q