3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array('1' => 'a', '2' => 'b'); print_r(array_keys($test));

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)
8.3.40.0110.00418.69
8.3.30.0100.00318.64
8.3.20.0000.00818.52
8.3.10.0080.00020.48
8.3.00.0050.00221.83
8.2.170.0070.00722.96
8.2.160.0030.01320.48
8.2.150.0000.00824.18
8.2.140.0070.00424.66
8.2.130.0070.00026.16
8.2.120.0080.00019.23
8.2.110.0060.00320.47
8.2.100.0070.00417.78
8.2.90.0030.00619.28
8.2.80.0000.00817.97
8.2.70.0050.00517.38
8.2.60.0110.00017.55
8.2.50.0040.00418.07
8.2.40.0050.00518.03
8.2.30.0060.00319.70
8.2.20.0030.00517.61
8.2.10.0000.00817.67
8.2.00.0030.00517.65
8.1.270.0050.00223.99
8.1.260.0100.00326.35
8.1.250.0070.00028.09
8.1.240.0100.00022.33
8.1.230.0110.00020.95
8.1.220.0000.00818.77
8.1.210.0080.00018.77
8.1.200.0100.00017.36
8.1.190.0040.00417.39
8.1.180.0040.00418.10
8.1.170.0040.00418.53
8.1.160.0050.00218.73
8.1.150.0000.00718.57
8.1.140.0030.00517.29
8.1.130.0030.00317.68
8.1.120.0040.00617.38
8.1.110.0030.00517.43
8.1.100.0000.00817.28
8.1.90.0000.00717.39
8.1.80.0040.00417.41
8.1.70.0070.00017.33
8.1.60.0050.00317.54
8.1.50.0000.00817.32
8.1.40.0040.00417.44
8.1.30.0040.00417.56
8.1.20.0040.00417.39
8.1.10.0050.00317.40
8.1.00.0000.00717.38
8.0.300.0000.00719.91
8.0.290.0070.00017.05
8.0.280.0050.00318.27
8.0.270.0030.00317.17
8.0.260.0000.00716.79
8.0.250.0060.00216.78
8.0.240.0110.00016.89
8.0.230.0000.00716.76
8.0.220.0030.00316.79
8.0.210.0000.00716.76
8.0.200.0070.00016.91
8.0.190.0030.00316.85
8.0.180.0050.00316.85
8.0.170.0050.00516.75
8.0.160.0030.00616.83
8.0.150.0040.00416.76
8.0.140.0040.00416.74
8.0.130.0000.00613.26
8.0.120.0050.00316.72
8.0.110.0080.00016.80
8.0.100.0070.00016.80
8.0.90.0000.00816.83
8.0.80.0130.00316.86
8.0.70.0000.00816.78
8.0.60.0040.00416.61
8.0.50.0060.00316.80
8.0.30.0100.01017.06
8.0.20.0130.01017.40
8.0.10.0040.00416.98
8.0.00.0110.00916.78
7.4.330.0030.00313.43
7.4.320.0070.00016.41
7.4.300.0000.00616.51
7.4.290.0000.00616.52
7.4.280.0030.00316.37
7.4.270.0040.00416.41
7.4.260.0030.00313.12
7.4.250.0030.00516.50
7.4.240.0070.00016.37
7.4.230.0000.00716.26
7.4.220.0130.00616.52
7.4.210.0130.00616.43
7.4.200.0050.00216.27
7.4.190.0070.00016.28
7.4.160.0110.00616.21
7.4.150.0030.01417.40
7.4.140.0100.00717.86
7.4.130.0090.00616.32
7.4.120.0070.01016.34
7.4.110.0140.00316.36
7.4.100.0000.01716.39
7.4.90.0100.01316.28
7.4.80.0140.00319.04
7.4.70.0130.00616.41
7.4.60.0160.00316.35
7.4.50.0030.00616.36
7.4.40.0030.01222.27
7.4.30.0070.01116.52
7.4.10.0000.01514.90
7.4.00.0030.01414.78
7.3.330.0030.00312.98
7.3.320.0000.00812.93
7.3.310.0070.00016.13
7.3.300.0000.00716.03
7.3.290.0090.00316.22
7.3.280.0080.00816.12
7.3.270.0100.00617.40
7.3.260.0070.01018.24
7.3.250.0100.01116.23
7.3.240.0070.01116.32
7.3.230.0150.00616.39
7.3.210.0060.00916.05
7.3.200.0130.00319.39
7.3.190.0070.01316.18
7.3.180.0110.00516.03
7.3.170.0080.00816.27
7.3.160.0060.01516.53
7.3.130.0140.00314.73
7.3.120.0080.00514.47
7.3.110.0070.01314.67
7.3.100.0070.00714.84
7.3.90.0030.00614.76
7.3.80.0000.01414.35
7.3.70.0110.00714.73
7.3.60.0000.01314.42
7.3.50.0140.00014.52
7.3.40.0080.00514.63
7.3.30.0120.00314.80
7.3.20.0060.00616.25
7.3.10.0040.00416.46
7.3.00.0030.01016.20
7.2.330.0100.00716.17
7.2.320.0130.00316.21
7.2.310.0100.00716.31
7.2.300.0030.01316.57
7.2.290.0090.01316.43
7.2.260.0090.00914.81
7.2.250.0060.00615.06
7.2.240.0070.00715.05
7.2.230.0000.01514.75
7.2.220.0030.01014.92
7.2.210.0000.01414.69
7.2.200.0090.00614.78
7.2.190.0100.00614.64
7.2.180.0000.01414.94
7.2.170.0070.00714.59
7.2.160.0060.00914.78
7.2.150.0060.01016.77
7.2.140.0070.00716.81
7.2.130.0140.00316.70
7.2.120.0040.00716.75
7.2.110.0060.00916.81
7.2.100.0000.01016.85
7.2.90.0090.00616.94
7.2.80.0000.01016.70
7.2.70.0110.00716.66
7.2.60.0000.00916.74
7.2.50.0000.01116.73
7.2.40.0030.00616.78
7.2.30.0150.00016.85
7.2.20.0040.00716.58
7.2.10.0070.00716.85
7.2.00.0100.00517.97
7.1.330.0090.00615.59
7.1.320.0030.01215.82
7.1.310.0050.00515.86
7.1.300.0060.00915.72
7.1.290.0030.00815.93
7.1.280.0100.00715.73
7.1.270.0040.00815.78
7.1.260.0060.00915.89
7.1.250.0090.00315.65
7.1.240.0000.01415.48
7.1.230.0030.00615.77
7.1.220.0030.01315.59
7.1.210.0090.00015.81
7.1.200.0060.00315.64
7.1.190.0060.00615.84
7.1.180.0040.00415.62
7.1.170.0000.01415.63
7.1.160.0030.00915.46
7.1.150.0050.00515.68
7.1.140.0090.00615.85
7.1.130.0100.00315.64
7.1.120.0030.01215.70
7.1.110.0110.00415.66
7.1.100.0080.00717.04
7.1.90.0070.00715.76
7.1.80.0040.01115.52
7.1.70.0060.00516.37
7.1.60.0080.01017.50
7.1.50.0080.00716.29
7.1.40.0030.01215.36
7.1.30.0030.00715.79
7.1.20.0110.00015.61
7.1.10.0070.00715.68
7.1.00.0020.04119.03
7.0.330.0100.00315.27
7.0.320.0060.00615.35
7.0.310.0070.00715.53
7.0.300.0100.00315.30
7.0.290.0110.00015.39
7.0.280.0080.00415.32
7.0.270.0000.01115.35
7.0.260.0060.00615.36
7.0.250.0060.00915.41
7.0.240.0070.00315.02
7.0.230.0100.00315.14
7.0.220.0090.00315.42
7.0.210.0000.00915.38
7.0.200.0030.00816.01
7.0.190.0060.00615.44
7.0.180.0040.01115.39
7.0.170.0070.00715.44
7.0.160.0030.00515.29
7.0.150.0100.00315.40
7.0.140.0060.04018.65
7.0.130.0000.01415.01
7.0.120.0060.01015.07
7.0.110.0070.00714.98
7.0.100.0000.01315.44
7.0.90.0030.01315.25
7.0.80.0050.00515.09
7.0.70.1220.03017.63
7.0.60.1310.02317.52
7.0.50.1280.02317.92
7.0.40.1290.02316.70
7.0.30.0400.02216.61
7.0.20.0260.02016.74
7.0.10.0670.02516.70
7.0.00.0870.02916.78
5.6.400.0060.00314.22
5.6.390.0040.00414.14
5.6.380.0060.00914.28
5.6.370.0080.00814.11
5.6.360.0080.00414.50
5.6.350.0030.01014.41
5.6.340.0000.00914.56
5.6.330.0060.00314.39
5.6.320.0090.00613.76
5.6.310.0000.01114.04
5.6.300.0090.00614.37
5.6.290.0080.00614.14
5.6.280.0000.04417.57
5.6.270.0040.01114.12
5.6.260.0130.00314.25
5.6.250.0100.00614.42
5.6.240.0080.00814.13
5.6.230.0040.00813.98
5.6.220.0030.00614.07
5.6.210.0770.02317.29
5.6.200.0880.02717.77
5.6.190.1100.02317.58
5.6.180.0130.02517.69
5.6.170.0410.01617.74
5.6.160.0410.01917.44
5.6.150.0730.02017.67
5.6.140.0430.01817.64
5.6.130.0970.02317.54
5.6.120.1230.02117.57
5.6.110.1100.02117.53
5.6.100.0790.02517.64
5.6.90.1180.02817.54
5.6.80.1120.02317.20
5.6.70.0800.02017.24
5.6.60.0590.02117.23
5.6.50.1230.02917.35
5.6.40.1200.02817.29
5.6.30.1520.02417.16
5.6.20.0820.02717.26
5.6.10.1540.02117.33
5.6.00.0990.02417.37
5.5.380.0050.00313.85
5.5.370.0040.00814.25
5.5.360.0070.00314.18
5.5.350.1170.02717.19
5.5.340.1250.01717.52
5.5.330.1130.02217.27
5.5.320.0220.02317.45
5.5.310.0330.02317.55
5.5.300.0550.02317.44
5.5.290.0680.01917.40
5.5.280.0250.01717.46
5.5.270.1480.02017.50
5.5.260.0930.02317.29
5.5.250.1010.02617.38
5.5.240.1650.02017.05
5.5.230.1180.02317.12
5.5.220.1140.01717.06
5.5.210.1450.02117.04
5.5.200.1130.01817.23
5.5.190.0730.02717.09
5.5.180.1660.02217.16
5.5.170.0000.01414.10
5.5.160.1600.02317.15
5.5.150.1980.02517.05
5.5.140.1400.02116.89
5.5.130.1500.02517.14
5.5.120.1780.02117.10
5.5.110.0700.03017.25
5.5.100.1390.02817.12
5.5.90.1880.02016.89
5.5.80.1750.02117.02
5.5.70.1680.02116.99
5.5.60.1390.01917.02
5.5.50.1400.01717.02
5.5.40.1300.02717.05
5.5.30.1380.01816.98
5.5.20.1370.02017.21
5.5.10.1400.02517.08
5.5.00.1200.02917.03
5.4.450.0420.01815.25
5.4.440.0820.02114.97
5.4.430.1230.02315.32
5.4.420.1230.02015.18
5.4.410.1280.01915.29
5.4.400.1000.01714.92
5.4.390.1380.02414.93
5.4.380.1180.02214.88
5.4.370.1250.01815.06
5.4.360.0960.02514.95
5.4.350.0880.03015.02
5.4.340.1220.02314.86
5.4.330.0030.00911.04
5.4.320.1830.02115.08
5.4.310.1890.02815.11
5.4.300.1750.02514.91
5.4.290.1630.01715.04
5.4.280.1910.02214.91
5.4.270.0750.01814.93
5.4.260.1470.02014.92
5.4.250.1630.02314.82
5.4.240.1370.01714.92
5.4.230.1880.02515.19
5.4.220.1520.01815.09
5.4.210.1490.01915.05
5.4.200.1300.01315.00
5.4.190.1560.02115.02
5.4.180.1090.02015.11
5.4.170.1360.02315.10
5.4.160.1400.02015.06
5.4.150.0630.02714.92
5.4.140.1400.01813.45
5.4.130.1490.01813.71
5.4.120.1450.01213.68
5.4.110.1000.01913.75
5.4.100.1550.02613.82
5.4.90.1460.02013.86
5.4.80.0920.02213.72
5.4.70.1170.01913.74
5.4.60.1020.01913.79
5.4.50.1330.01813.50
5.4.40.1270.02713.74
5.4.30.1600.01813.66
5.4.20.0980.01513.59
5.4.10.0770.02013.66
5.4.00.0770.01713.28
5.3.290.1480.02412.57
5.3.280.1610.02312.40
5.3.270.1390.02012.60
5.3.260.1220.02312.58
5.3.250.0700.02212.66
5.3.240.0770.02212.51
5.3.230.1100.01212.57
5.3.220.1300.02512.56
5.3.210.1100.02012.54
5.3.200.0850.02012.54
5.3.190.1150.01512.41
5.3.180.1320.02212.54
5.3.170.1400.02012.66
5.3.160.1410.01712.57
5.3.150.1120.01712.49
5.3.140.1310.01812.60
5.3.130.1300.01512.40
5.3.120.1250.01512.51
5.3.110.0720.01812.42
5.3.100.1100.02212.29
5.3.90.1100.02012.25
5.3.80.1180.01512.11
5.3.70.1270.01712.28
5.3.60.1380.02112.29
5.3.50.1080.01312.27
5.3.40.0700.01712.25
5.3.30.0230.01812.17
5.3.20.0240.02011.99
5.3.10.0420.02512.03
5.3.00.0300.02111.79
5.2.170.1770.02311.15
5.2.160.2070.03011.12
5.2.150.0470.02011.04
5.2.140.1230.02011.18
5.2.130.0330.03311.19
5.2.120.0770.02711.02
5.2.110.0430.02711.18
5.2.100.0930.02310.97
5.2.90.0300.03710.98
5.2.80.0430.03010.99
5.2.70.0370.03010.98
5.2.60.1230.02011.15
5.2.50.0370.03311.12
5.2.40.0330.03010.90
5.2.30.0670.02311.02
5.2.20.0430.02711.00
5.2.10.0400.02710.87
5.2.00.0300.02310.65
5.1.60.0600.0179.87
5.1.50.0370.0209.86
5.1.40.0200.0279.96
5.1.30.0230.02010.28
5.1.20.0330.02310.45
5.1.10.0900.02010.17
5.1.00.0770.02010.06
5.0.50.0700.0178.53
5.0.40.0230.0208.43
5.0.30.0130.0278.21
5.0.20.0300.0208.32
5.0.10.0200.0238.15
5.0.00.0330.0308.04
4.4.90.0130.0135.89
4.4.80.0300.0105.90
4.4.70.0630.0135.89
4.4.60.0830.0135.89
4.4.50.0170.0175.89
4.4.40.0230.0275.89
4.4.30.0170.0105.89
4.4.20.0200.0205.89
4.4.10.0400.0135.89
4.4.00.1470.0135.89
4.3.110.0200.0175.89
4.3.100.0270.0135.89
4.3.90.0100.0175.90
4.3.80.0200.0275.90
4.3.70.0170.0135.90
4.3.60.0130.0135.90
4.3.50.0200.0105.90
4.3.40.0200.0275.90
4.3.30.0100.0175.90
4.3.20.0070.0175.90
4.3.10.0070.0175.90
4.3.00.0100.0175.90

preferences:
43.38 ms | 400 KiB | 5 Q