3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isIndexNormalized($array){ $array[] = 'aux'; return (array_key_last($array) - array_key_first($array) + 1) === count($array); } // ------- $array = [0, 1, 2, 3]; unset($array[3]); var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([0, 1, 2, "x"] === $array, $array); echo "\n\n\n\n"; // ------- $array = [0, 1, 2]; var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([0, 1, 2, "x"] === $array, $array); echo "\n\n\n\n"; // ------- $array = [4 => 0, 5 => 1, 6 => 2]; var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([4 => 0, 5 => 1, 6 => 2, 7 => "x"] === $array, $array); echo "\n\n\n\n"; // ------- //This one fails though, but it will work on PHP8 :P $array = [-6 => 0, -5 => -2, -4 => 2]; var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([-6 => 0, -5 => 1, -4 => 2, -3 => "x"] === $array, $array);

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)
8.4.130.0140.00618.62
8.4.120.0150.00524.03
8.4.110.0030.00719.06
8.4.100.0060.00418.75
8.4.90.0130.00820.51
8.4.80.0070.00318.95
8.4.70.0050.00517.98
8.4.60.0110.01019.05
8.4.50.0130.00818.79
8.4.40.0110.00717.77
8.4.30.0100.01017.43
8.4.20.0170.00320.41
8.4.10.0160.00317.93
8.3.260.0110.00916.55
8.3.250.0140.00519.02
8.3.240.0090.01017.21
8.3.230.0090.01016.48
8.3.220.0130.00518.88
8.3.210.0100.00918.48
8.3.200.0050.00316.73
8.3.190.0050.00317.28
8.3.180.0080.00217.13
8.3.170.0070.01119.09
8.3.160.0120.00616.46
8.3.150.0060.01317.21
8.3.140.0070.01018.37
8.3.130.0030.00618.48
8.3.120.0090.00018.90
8.3.110.0040.01520.94
8.3.100.0000.00818.31
8.3.90.0050.00318.33
8.3.80.0040.00817.97
8.3.70.0060.00916.88
8.3.60.0090.00618.30
8.3.50.0250.00617.09
8.3.40.0070.01118.88
8.3.30.0110.00718.80
8.3.20.0030.00618.69
8.3.10.0040.00421.90
8.3.00.0040.00421.73
8.2.290.0090.01020.31
8.2.280.0110.00818.52
8.2.270.0160.00317.09
8.2.260.0040.00416.86
8.2.250.0080.01216.89
8.2.240.0030.00616.43
8.2.230.0090.00022.58
8.2.220.0100.00024.06
8.2.210.0080.00026.77
8.2.200.0030.00616.75
8.2.190.0110.00418.29
8.2.180.0150.00018.29
8.2.170.0070.00722.96
8.2.160.0070.00722.01
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0080.00619.96
8.2.110.0050.00520.48
8.2.100.0090.00319.57
8.2.90.0060.00317.97
8.2.80.0030.00517.97
8.2.70.0060.00317.93
8.2.60.0080.00018.28
8.2.50.0000.00818.10
8.2.40.0030.00619.47
8.2.30.0000.00720.58
8.2.20.0030.00518.16
8.2.10.0000.00717.96
8.2.00.0050.00318.11
8.1.330.0080.01221.63
8.1.320.0070.00120.39
8.1.310.0080.00016.34
8.1.300.0140.00420.06
8.1.290.0030.00618.88
8.1.280.0100.01025.92
8.1.270.0080.00020.29
8.1.260.0070.00426.35
8.1.250.0070.00028.09
8.1.240.0080.00022.13
8.1.230.0070.00422.73
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0050.00517.25
8.1.190.0030.00617.35
8.1.180.0050.00318.10
8.1.170.0030.00518.61
8.1.160.0000.00718.93
8.1.150.0040.00418.89
8.1.140.0040.00420.68
8.1.130.0070.00020.23
8.1.120.0000.00817.44
8.1.110.0030.00617.46
8.1.100.0040.00417.35
8.1.90.0030.00517.36
8.1.80.0040.00417.48
8.1.70.0070.00017.48
8.1.60.0030.00517.57
8.1.50.0030.00617.52
8.1.40.0070.00317.57
8.1.30.0080.00017.63
8.1.20.0000.00817.69
8.1.10.0000.00717.37
8.1.00.0060.00317.45
8.0.300.0000.00719.69
8.0.290.0060.00316.75
8.0.280.0000.00718.50
8.0.270.0030.00317.12
8.0.260.0040.00418.29
8.0.250.0000.00716.87
8.0.240.0050.00216.80
8.0.230.0070.00016.79
8.0.220.0030.00316.83
8.0.210.0040.00416.73
8.0.200.0080.00016.91
8.0.190.0060.00316.93
8.0.180.0030.00616.87
8.0.170.0040.00416.80
8.0.160.0070.00016.98
8.0.150.0020.00516.84
8.0.140.0040.00316.91
8.0.130.0030.00313.35
8.0.120.0000.00816.76
8.0.110.0070.00016.87
8.0.100.0040.00416.77
8.0.90.0050.00316.81
8.0.80.0070.01116.85
8.0.70.0040.00416.84
8.0.60.0020.00516.88
8.0.50.0050.00216.91
8.0.30.0150.00517.18
8.0.20.0090.01217.40
8.0.10.0000.00717.00
8.0.00.0080.01116.78
7.4.330.0000.00515.55
7.4.320.0030.00316.64
7.4.300.0060.00016.59
7.4.290.0000.00716.59
7.4.280.0050.00716.51
7.4.270.0000.00716.51
7.4.260.0040.00416.38
7.4.250.0000.00816.52
7.4.240.0040.00416.61
7.4.230.0000.00716.46
7.4.220.0080.00016.42
7.4.210.0090.01016.60
7.4.200.0040.00416.70
7.4.160.0090.01016.45
7.4.140.0110.00817.86
7.4.130.0090.01216.62
7.4.120.0100.00916.57
7.4.110.0120.01216.72
7.4.100.0090.01216.53
7.4.90.0160.00316.54
7.4.80.0130.00619.39
7.4.70.0100.00716.59
7.4.60.0300.01416.32
7.4.50.0060.01016.40
7.4.40.0090.01216.43
7.4.00.0000.01414.57
7.3.330.0000.00513.43
7.3.320.0030.00313.18
7.3.310.0030.00316.36
7.3.300.0000.00716.25
7.3.290.0030.00316.32
7.3.280.0070.01016.34
7.3.260.0140.00716.43
7.3.240.0130.00716.45
7.3.230.0090.00916.46
7.3.210.0180.00016.42
7.3.200.0080.00816.53
7.3.190.0120.00916.26
7.3.180.0030.01916.41
7.3.170.0080.00816.43
7.3.160.0000.01716.68
7.3.120.0030.01314.96
7.3.110.0060.01314.76
7.3.100.0090.00314.90
7.3.90.0100.01014.91
7.3.80.0060.00314.83
7.3.70.0090.00014.86
7.3.60.0130.00314.79
7.3.50.0060.01014.71
7.3.40.0070.00714.82
7.3.30.0030.01014.89
7.3.20.0040.00916.73
7.3.10.0070.01016.67
7.3.00.0030.01316.76
7.2.330.0000.01916.69
7.2.320.0030.01816.46
7.2.310.0050.01116.73
7.2.300.0090.01216.32
7.2.290.0030.01316.55
7.2.240.0030.01415.13
7.2.230.0030.01415.16
7.2.220.0040.01515.19
7.2.210.0090.00315.18
7.2.200.0040.01114.72
7.2.190.0030.00714.86
7.2.180.0160.00314.58
7.2.170.0110.00614.78
7.2.160.0040.01214.68
7.2.150.0000.01416.72
7.2.140.0040.00716.91
7.2.130.0080.00816.74
7.2.120.0000.01016.57
7.2.110.0070.00716.86
7.2.100.0240.00615.71
7.2.90.0350.00615.64
7.2.80.0350.00915.75
7.2.70.0050.01515.77
7.2.60.0130.01115.80
7.2.50.0810.00915.75
7.2.40.0800.00515.73
7.2.30.0150.00515.64
7.2.20.0080.00815.75
7.2.10.0110.00315.85
7.2.00.0710.00515.79
7.1.330.0090.00915.73
7.1.320.0090.00915.79
7.1.310.0030.01215.53
7.1.300.0040.00415.78
7.1.290.0040.00715.43
7.1.280.0030.01015.73
7.1.270.0080.00315.79
7.1.260.0070.00716.01
7.1.250.0030.01315.61
7.1.220.1630.01013.79
7.1.210.0150.00613.72
7.1.200.0210.00613.59
7.1.190.1500.00313.92
7.1.180.0490.00313.84
7.1.170.0190.00313.74
7.1.160.0460.01013.69
7.1.150.1730.00313.68
7.1.140.0920.00314.02
7.1.130.0110.00713.73
7.1.120.1600.00713.58
7.1.110.1630.01013.58
7.1.100.1800.00714.06
7.1.90.1550.00714.09
7.1.80.1270.00313.87
7.1.70.1300.00713.86
7.1.60.1110.01031.80
7.1.50.2370.00731.67
7.1.40.1470.01331.54
7.1.30.2230.01331.52
7.1.20.1870.00731.75
7.1.10.1760.00013.71
7.1.00.1040.00713.61
5.6.380.0060.00814.48

preferences:
106.69 ms | 403 KiB | 5 Q