3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (phpversion() < '5.2.1') { die('php sucks'); } function gdr_encode($val) { // all characters that json encode without escaping $chrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !#$%&\'()*+,-.:;<=>?@[]^_`{|}~'; $base = strlen($chrs); $str = ''; while ($val > 0) { $str = $chrs[$val % $base] . $str; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { // all characters that json encode without escaping $chrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !#$%&\'()*+,-.:;<=>?@[]^_`{|}~'; $base = strlen($chrs); $map = array(); for ($i=0; $i<$base; $i++) { $map[$chrs[$i]] = $i; } $val = 0; for ($i=0; $i<strlen($str); $i++) { $val *= $base; $val += (int)$map[$str[$i]]; } return $val; } function duration($val) { if ($val < 24) { return sprintf('%d', $val).' hour'; } if ($val < 24*10) { return sprintf('%1.2f', $val/24).' day '; } if ($val < 168*10) { return sprintf('%1.2f', $val/168).' week'; } //if ($val < 730*10) { // return sprintf('%1.2f', $val/730).'m'; //} if ($val < 8760*100) { return sprintf('%1.2f', $val/8760).' year'; } if ($val < 876582*10) { return sprintf('%1.2f', $val/876582).' cent'; } return sprintf('%1.2f', $val/8.766e6).' mill'; } function cmp($val) { return strlen(gdr_encode($val))+2-strlen($val); } function insert(&$vals, $n) { $min = intval('1'.str_repeat('0', $n-1)); $max = intval(str_repeat('9', $n)); $vals[] = $min; $vals[] = $max; $cmp_min = cmp($min); $cmp_max = cmp($max); if ($cmp_min === $cmp_max) { return; } // binary search for edges if ($cmp_min+1 !== $cmp_max) { echo "ERROR: invalid search assumption: possibly missing edges: [$min => $cmp_min, $max => $cmp_max]\n"; } while ($min <= $max) { $mid = (int)(($min+$max)/2); $cmp_mid = cmp($mid); //echo "trace: [$min => $cmp_min, $mid => $cmp_mid, $max=>$cmp_max]\n"; if ($cmp_min === $cmp_mid && $cmp_mid !== cmp($mid+1)) { $vals[] = $mid; $vals[] = $mid+1; return; } //$vals[] = $mid; // include visited values in results if ($min === $max) { return; } if ($cmp_min < $cmp_mid) { $max = $mid-1; } else { $min = $mid+1; } } } $vals = array(0); for ($i=1; $i<8; $i++) { insert($vals, $i); } $vals = array_unique($vals); sort($vals); echo sprintf("%7s %7s %12s %4s\n", 'num', 'str', 'time', 'cmp'); foreach ($vals as $val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($dec !== $val) { echo "ERROR: $val => $enc => $dec\n"; } else { echo sprintf("%7d %7s %12s %4d\n", $dec, "\"$enc\"", duration($val), cmp($val)); } }

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)
7.4.10.0030.01314.77
7.4.00.0080.01115.17
7.3.130.0130.00714.92
7.3.120.0070.01115.03
7.3.110.0130.00615.04
7.3.100.0030.01014.88
7.3.90.0030.01314.93
7.3.80.0070.00714.55
7.3.70.0000.00914.83
7.3.60.0040.01114.91
7.3.50.0040.00814.61
7.3.40.0000.01214.63
7.3.30.0040.01114.77
7.3.20.0060.01016.64
7.3.10.0040.01116.41
7.3.00.0030.00916.23
7.2.260.0090.00915.37
7.2.250.0060.01315.44
7.2.240.0060.01015.22
7.2.230.0000.01515.34
7.2.220.0060.00615.19
7.2.210.0070.00715.27
7.2.200.0030.01215.02
7.2.190.0030.01015.28
7.2.180.0040.01115.05
7.2.170.0000.01515.10
7.2.160.0100.00614.78
7.2.150.0040.00716.68
7.2.140.0000.01216.93
7.2.130.0090.00616.67
7.2.120.0150.00316.76
7.2.110.0040.01117.01
7.2.100.0040.01117.03
7.2.90.0030.01617.02
7.2.80.0040.01116.95
7.2.70.0030.00616.84
7.2.60.0090.00316.88
7.2.50.0060.00916.82
7.2.40.0030.01217.00
7.2.30.0110.00716.98
7.2.20.0030.01616.94
7.2.10.0030.01316.86
7.2.00.0030.01218.05
7.1.330.0100.00715.59
7.1.320.0060.00615.95
7.1.310.0000.01315.96
7.1.300.0000.01015.81
7.1.290.0000.01515.85
7.1.280.0070.00715.81
7.1.270.0030.01015.54
7.1.260.0030.00915.71
7.1.250.0040.00815.65
7.1.240.0040.01115.60
7.1.230.0030.00615.71
7.1.220.0040.00815.78
7.1.210.0000.01715.63
7.1.200.0110.00315.47
7.1.190.0070.00715.69
7.1.180.0060.00915.79
7.1.170.0120.00015.57
7.1.160.0110.00415.93
7.1.150.0030.00715.62
7.1.140.0070.00715.86
7.1.130.0100.00615.73
7.1.120.0030.00616.01
7.1.110.0030.01415.88
7.1.100.0030.00816.96
7.1.90.0040.01115.72
7.1.80.0100.00316.05
7.1.70.0050.01016.39
7.1.60.0100.01017.55
7.1.50.0030.01516.52
7.1.40.0100.00715.93
7.1.30.0080.00415.87
7.1.20.0060.00915.75
7.1.10.0070.00715.76
7.1.00.0050.03818.96
7.0.330.0060.00615.43
7.0.320.0070.00415.43
7.0.310.0040.01415.48
7.0.300.0110.00415.32
7.0.290.0100.00015.40
7.0.280.0000.00915.57
7.0.270.0000.01115.36
7.0.260.0030.01215.39
7.0.250.0030.00915.61
7.0.240.0080.00315.28
7.0.230.0090.00315.41
7.0.220.0070.00415.38
7.0.210.0060.00915.27
7.0.200.0060.00516.13
7.0.190.0070.01015.29
7.0.180.0000.00915.42
7.0.170.0030.01315.28
7.0.160.0050.00315.50
7.0.150.0040.00715.53
7.0.140.0060.04118.81
7.0.130.0070.00415.43
7.0.120.0070.00715.57
7.0.110.0060.00615.29
7.0.100.0030.00915.19
7.0.90.0070.00715.06
7.0.80.0100.00315.52
7.0.70.0040.01115.30
7.0.60.0050.04617.70
7.0.50.0070.03316.64
7.0.40.0040.03016.87
7.0.30.0150.02816.78
7.0.20.0270.03716.84
7.0.10.0020.05216.94
7.0.00.0110.04016.72
5.6.400.0060.00614.38
5.6.390.0060.00614.66
5.6.380.0030.01014.12
5.6.370.0000.01314.61
5.6.360.0120.00314.36
5.6.350.0070.00714.68
5.6.340.0070.01014.75
5.6.330.0090.00614.32
5.6.320.0060.00914.71
5.6.310.0000.01214.64
5.6.300.0080.00814.69
5.6.290.0040.01514.32
5.6.280.0090.03917.93
5.6.270.0000.01114.59
5.6.260.0030.01514.58
5.6.250.0080.00814.54
5.6.240.0100.00314.46
5.6.230.0080.00414.45
5.6.220.0110.00614.75
5.6.210.0090.02917.48
5.6.200.0070.04716.40
5.6.190.0060.03117.60
5.6.180.0170.04517.55
5.6.170.0120.04617.52
5.6.160.0030.03917.37
5.6.150.0020.02716.40
5.6.140.0080.04216.36
5.6.130.0050.02416.22
5.6.120.0120.04217.55
5.6.110.0070.04817.77
5.6.100.0090.03717.67
5.6.90.0080.04317.86
5.6.80.0050.04017.49
5.6.70.0070.00714.15
5.6.60.0000.02314.58
5.6.50.0060.01514.38
5.6.40.0070.01414.16
5.6.30.0090.01414.45
5.6.20.0000.01714.57
5.6.10.0060.00614.38
5.6.00.0060.00914.44
5.5.380.0030.01314.76
5.5.370.0050.00514.70
5.5.360.0090.00014.80
5.5.350.0110.04117.54
5.5.340.0160.03616.06
5.5.330.0020.04117.33
5.5.320.0200.04317.25
5.5.310.0130.02517.29
5.5.300.0070.04516.10
5.5.290.0090.03316.19
5.5.280.0090.04917.65
5.5.270.0030.03417.54
5.5.260.0130.04317.58
5.5.250.0090.03417.36
5.5.240.0150.04717.14
5.5.230.0050.01814.40
5.5.220.0080.01314.18
5.5.210.0160.00814.07
5.5.200.0040.01414.33
5.5.190.0130.00314.24
5.5.180.0090.00914.23
5.5.170.0070.01114.43
5.5.160.0060.01014.21
5.5.150.0000.01014.53
5.5.140.0110.00414.00
5.5.130.0110.00414.25
5.5.120.0040.01113.96
5.5.110.0030.00914.43
5.5.100.0110.00614.36
5.5.90.0040.01314.10
5.5.80.0070.00714.14
5.5.70.0070.01314.30
5.5.60.0120.00914.04
5.5.50.0040.00814.22
5.5.40.0040.01414.21
5.5.30.0060.01214.01
5.5.20.0120.00413.90
5.5.10.0090.00614.18
5.5.00.0120.00814.41
5.4.450.0150.02915.93
5.4.440.0070.02515.90
5.4.430.0120.02515.95
5.4.420.0260.02016.01
5.4.410.0130.02515.85
5.4.400.0280.02315.79
5.4.390.0300.02315.63
5.4.380.0070.03615.47
5.4.370.0120.03015.48
5.4.360.0080.03415.57
5.4.350.0130.02815.43
5.4.340.0090.03115.57
5.4.330.0000.01012.38
5.4.320.0080.02412.46
5.4.310.0060.02412.46
5.4.300.0050.02912.46
5.4.290.0120.04212.46
5.4.280.0080.03812.41
5.4.270.0090.02812.41
5.4.260.0040.03012.41
5.4.250.0060.03212.41
5.4.240.0020.03512.41
5.4.230.0070.04812.40
5.4.220.0070.04712.41
5.4.210.0060.03012.41
5.4.200.0050.03112.40
5.4.190.0060.02612.40
5.4.180.0070.03012.40
5.4.170.0060.03212.41
5.4.160.0060.03112.40
5.4.150.0100.04412.40
5.4.140.0070.03112.25
5.4.130.0040.03112.24
5.4.120.0050.03112.22
5.4.110.0060.02912.22
5.4.100.0050.03012.21
5.4.90.0070.03012.21
5.4.80.0070.03512.22
5.4.70.0040.03212.21
5.4.60.0090.02512.21
5.4.50.0070.02912.21
5.4.40.0070.03212.21
5.4.30.0060.03012.21
5.4.20.0020.03412.21
5.4.10.0100.02712.21
5.4.00.0050.03311.95
5.3.290.0030.04412.80
5.3.280.0160.06512.73
5.3.270.0070.07412.74
5.3.260.0140.06612.74
5.3.250.0060.06412.74
5.3.240.0160.05312.74
5.3.230.0070.05812.73
5.3.220.0090.05912.70
5.3.210.0130.05112.70
5.3.200.0110.07412.70
5.3.190.0140.04812.70
5.3.180.0180.03712.70
5.3.170.0110.05112.70
5.3.160.0090.05312.70
5.3.150.0090.05612.70
5.3.140.0100.07412.69
5.3.130.0130.06112.68
5.3.120.0080.05712.68
5.3.110.0070.05712.70
5.3.100.0100.05012.16
5.3.90.0090.05312.15
5.3.80.0080.05312.14
5.3.70.0040.05612.14
5.3.60.0130.05612.13
5.3.50.0100.04412.07
5.3.40.0080.04112.07
5.3.30.0100.03812.04
5.3.20.0060.03911.81
5.3.10.0080.03711.78
5.3.00.0070.04111.77
5.2.170.0050.0379.28
5.2.160.0050.0339.28
5.2.150.0040.0339.28
5.2.140.0040.0339.27
5.2.130.0070.0289.23
5.2.120.0040.0309.23
5.2.110.0050.0319.25
5.2.100.0050.0309.23
5.2.90.0030.0329.23
5.2.80.0040.0329.22
5.2.70.0070.0309.23
5.2.60.0050.0329.18
5.2.50.0030.0339.15
5.2.40.0070.0359.13
5.2.30.0050.0369.09
5.2.20.0040.0319.10
5.2.10.0060.0299.00
5.2.00.0050.0308.85
5.1.60.0030.0268.14
5.1.50.0060.0288.14
5.1.40.0050.0328.12
5.1.30.0070.0268.47
5.1.20.0050.0348.50
5.1.10.0060.0348.21
5.1.00.0070.0288.22
5.0.50.0030.0216.71
5.0.40.0020.0306.57
5.0.30.0020.0356.38
5.0.20.0050.0206.36
5.0.10.0040.0226.35
5.0.00.0020.0336.34
4.4.90.0020.0174.78
4.4.80.0030.0164.76
4.4.70.0070.0124.75
4.4.60.0000.0194.75
4.4.50.0030.0164.77
4.4.40.0000.0304.71
4.4.30.0040.0164.76
4.4.20.0030.0184.85
4.4.10.0020.0174.85
4.4.00.0040.0254.76
4.3.110.0030.0164.67
4.3.100.0050.0134.67
4.3.90.0000.0174.63
4.3.80.0030.0254.63
4.3.70.0020.0164.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0020.0254.58
4.3.30.0020.0173.39
4.3.20.0030.0233.37
4.3.10.0020.0223.32
4.3.00.0070.01015.91

preferences:
31.49 ms | 401 KiB | 5 Q