3v4l.org

run code in 300+ PHP versions simultaneously
<?php $closestRadix = function(int $num) : int { $index = floor(log($num, 10)); $nextMag = 10**($index+1); return $nextMag - $num > $nextMag / 2 ? $index: $index + 1; }; $numDigits = function(int $num) : int { return floor(log($num, 10)) + 1; }; $isEven = function(int $num) : bool { return $num % 2 == 0; }; $isEvenNumberOfDigits = function(int $num) : bool { return $isEven($numDigits($num)); }; $mirror = function(int $num, bool $parityCase = false) : int { echo $num . "\n"; return (int)($parityCase ? substr((string)$num, 0, -1) : (string)$num . strrev((string)$num)); }; $halves = function(int $num) use ($isEvenNumberOfDigits, $numDigits) : array { $digitsPerHalf = $isEvenNumberOfDigits ? $numDigits($num)/2 : ceil($numDigits($num)/2); return [ substr((string)$num, 0, $digitsPerHalf), substr((string)$num, $digitsPerHalf, $digitsPerHalf) ]; }; $nextPalindrome = function(int $num) use ($halves, $mirror) : int { $smallestHalf = min($halves($num)); echo $smallestHalf . "\n"; return $halves($num)[0] == $smallestHalf ? $mirror($halves($num)[0])+1 : $mirror($halves($num)[1]); }; echo $nextPalindrome(110); ?> === 110 120 -> 121 999 1312 1314 -> 1331 121 131 191 202 1221 3113 9999

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)
8.3.60.0150.00616.73
8.3.50.0140.00418.27
8.3.40.0100.00719.17
8.3.30.0070.00719.00
8.3.20.0080.00020.46
8.3.10.0000.00822.35
8.3.00.0080.00023.73
8.2.180.0110.00717.00
8.2.170.0150.00622.96
8.2.160.0060.00919.45
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0080.00021.23
8.2.120.0120.00826.35
8.2.110.0000.01121.19
8.2.100.0060.00617.97
8.2.90.0060.00320.01
8.2.80.0050.00318.28
8.2.70.0000.00818.18
8.2.60.0060.00318.28
8.2.50.0080.00018.34
8.2.40.0040.00420.71
8.2.30.0040.00419.44
8.2.20.0070.00018.34
8.2.10.0050.00318.31
8.2.00.0040.00418.48
8.1.280.0040.01125.92
8.1.270.0000.00820.96
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00322.79
8.1.230.0090.00319.41
8.1.220.0030.00517.80
8.1.210.0030.00718.77
8.1.200.0040.00417.60
8.1.190.0060.00317.25
8.1.180.0040.00418.10
8.1.170.0000.00818.89
8.1.160.0040.00419.02
8.1.150.0000.00820.36
8.1.140.0000.00819.71
8.1.130.0050.00319.11
8.1.120.0040.00417.58
8.1.110.0000.00817.58
8.1.100.0000.00817.63
8.1.90.0040.00417.61
8.1.80.0040.00417.58
8.1.70.0000.00717.68
8.1.60.0000.00817.86
8.1.50.0000.00717.80
8.1.40.0040.00417.73
8.1.30.0030.00517.91
8.1.20.0040.00417.88
8.1.10.0040.00417.70
8.1.00.0040.00417.61
8.0.300.0030.00520.47
8.0.290.0080.00016.75
8.0.280.0040.00418.59
8.0.270.0000.00717.48
8.0.260.0000.00719.17
8.0.250.0030.00317.19
8.0.240.0040.00417.29
8.0.230.0110.00017.13
8.0.220.0000.00717.09
8.0.210.0030.00317.07
8.0.200.0030.00317.13
8.0.190.0030.00617.16
8.0.180.0040.00417.19
8.0.170.0000.00717.16
8.0.160.0000.00717.10
8.0.150.0000.00816.98
8.0.140.0000.00817.03
8.0.130.0060.00013.68
8.0.120.0040.00417.06
8.0.110.0000.00717.25
8.0.100.0030.00517.06
8.0.90.0050.00217.32
8.0.80.0080.00817.13
8.0.70.0040.00417.18
8.0.60.0040.00417.19
8.0.50.0000.00717.15
8.0.30.0110.00917.36
8.0.20.0090.01217.46
8.0.10.0050.00217.09
8.0.00.0100.01317.12
7.4.330.0000.00515.55
7.4.320.0070.00016.88
7.4.300.0000.00716.82
7.4.290.0090.00016.86
7.4.280.0000.00716.73
7.4.270.0060.00016.82
7.4.260.0030.00316.70
7.4.250.0040.00416.78
7.4.240.0030.00316.75
7.4.230.0000.00816.62
7.4.220.0070.01116.80
7.4.210.0060.00916.90
7.4.200.0050.00216.66
7.4.160.0040.01216.65
7.4.150.0130.00317.40
7.4.140.0080.01217.86
7.4.130.0090.00916.93
7.4.120.0100.00816.78
7.4.110.0160.00616.73
7.4.100.0180.00016.82
7.4.90.0090.00916.66
7.4.80.0120.00619.39
7.4.70.0070.01016.90
7.4.60.0060.01116.65
7.4.50.0030.01316.38
7.4.40.0130.00416.89
7.4.30.0210.00316.74
7.4.00.0050.01015.26
7.3.330.0000.00513.64
7.3.320.0030.00313.45
7.3.310.0030.00316.68
7.3.300.0070.00016.63
7.3.290.0060.01016.62
7.3.280.0100.00816.60
7.3.270.0140.00717.40
7.3.260.0090.00816.63
7.3.250.0090.01316.66
7.3.240.0070.01116.76
7.3.230.0100.00816.63
7.3.210.0130.01016.96
7.3.200.0080.01216.48
7.3.190.0090.01216.76
7.3.180.0040.01216.66
7.3.170.0130.00316.86
7.3.160.0030.01516.81
7.3.120.0080.00915.26
7.3.110.0050.01015.28
7.3.100.0050.01215.30
7.3.90.0080.00315.44
7.3.80.0040.00915.10
7.3.70.0020.00915.19
7.3.60.0100.00415.17
7.3.50.0090.00515.08
7.3.40.0050.00615.28
7.3.30.0050.01015.28
7.3.20.0030.01217.03
7.3.10.0110.00716.67
7.3.00.0050.00916.78
7.2.330.0060.01116.73
7.2.320.0120.01216.89
7.2.310.0070.01016.65
7.2.300.0040.01516.82
7.2.290.0100.00716.83
7.2.250.0160.00015.43
7.2.240.0020.01315.16
7.2.230.0050.00615.51
7.2.220.0100.00215.63
7.2.210.0050.01015.34
7.2.200.0000.01115.59
7.2.190.0120.00415.38
7.2.180.0090.00315.41
7.2.170.0070.00815.52
7.2.160.0030.01015.34
7.2.150.0030.01017.32
7.2.140.0030.01217.50
7.2.130.0100.00817.19
7.2.120.0070.01117.10
7.2.110.0080.00316.93
7.2.100.0110.00617.03
7.2.90.0110.00716.98
7.2.80.0070.00916.93
7.2.70.0170.00417.20
7.2.60.0040.01317.07
7.2.50.0110.01016.88
7.2.40.0060.01017.04
7.2.30.0120.00716.98
7.2.20.0050.01116.98
7.2.10.0070.01017.02
7.2.00.0110.01017.12
7.1.330.0050.00916.13
7.1.320.0040.01116.32
7.1.310.0050.00516.16
7.1.300.0050.01016.12
7.1.290.0060.00516.20
7.1.280.0040.00816.08
7.1.270.0060.01016.14
7.1.260.0020.00716.36
7.1.250.0070.01115.93
7.1.200.0000.01116.40
7.1.90.0090.00616.35
7.1.80.0160.01318.32
7.1.70.0070.00717.10
7.1.60.0190.01335.34
7.1.50.0200.01435.00
7.1.40.0160.01034.54
7.1.30.0130.01334.60
7.1.20.0180.01134.58
7.1.10.0050.00916.74
7.1.00.0090.00317.00
7.0.230.0110.01016.12
7.0.220.0100.01016.29
7.0.210.0030.01016.52
7.0.200.0040.01117.00
7.0.190.0060.00916.79
7.0.180.0030.00916.41
7.0.170.0060.00616.36
7.0.160.0030.01516.64
7.0.150.0070.00716.52
7.0.140.0030.00916.49
7.0.130.0040.00916.71
7.0.120.0000.01316.47
7.0.110.0000.01316.44
7.0.100.0070.00716.34
7.0.90.0030.00916.41
7.0.80.0080.00416.63
7.0.70.0030.01016.48
7.0.60.0000.01116.41
7.0.50.0000.01216.57
7.0.40.0070.00716.60
7.0.30.0040.00816.68
7.0.20.0000.01116.52
7.0.10.0000.01116.72
7.0.00.0000.01116.63

preferences:
65.06 ms | 400 KiB | 5 Q