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', $val/24).' days'; } if ($val < 168*10) { return sprintf('%1.2f', $val/168).' week'; } if ($val < 730*10) { return sprintf('%1.2f', $val/730).' mnth'; } if ($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($vals); echo sprintf("%7s %7s %11s %4s\n", 'num', 'str', 'duration', 'cmp'); foreach ($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 %11s %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)
7.3.10.0080.00416.67
7.3.00.0120.00316.56
7.2.130.0030.00616.98
7.2.120.0100.00717.03
7.2.110.0030.00617.06
7.2.100.0090.00616.90
7.2.90.0030.01117.11
7.2.80.0040.01216.96
7.2.70.0000.01016.76
7.2.60.0000.01116.91
7.2.50.0040.00816.81
7.2.40.0070.00416.96
7.2.30.0030.01017.00
7.2.20.0090.00316.97
7.2.10.0000.00917.18
7.2.00.0060.00317.04
7.1.250.0030.00715.99
7.1.70.0040.00416.98
7.1.60.0030.02319.40
7.1.50.0090.00616.94
7.1.00.0030.07722.45
7.0.200.0000.00816.68
7.0.140.0000.07322.21
7.0.100.0030.07320.12
7.0.90.0130.04720.00
7.0.80.0200.03719.99
7.0.70.0100.04720.02
7.0.60.0200.03719.94
7.0.50.0230.04020.37
7.0.40.0100.08020.13
7.0.30.0030.04320.13
7.0.20.0030.09020.11
7.0.10.0070.03720.22
7.0.00.0070.06720.18
5.6.280.0100.06720.93
5.6.250.0070.06320.54
5.6.240.0000.07020.70
5.6.230.0070.04320.62
5.6.220.0070.04020.52
5.6.210.0070.06320.60
5.6.200.0070.07321.18
5.6.190.0030.04321.04
5.6.180.0000.09021.07
5.6.170.0100.07721.04
5.6.160.0070.07721.08
5.6.150.0100.08021.08
5.6.140.0100.07021.20
5.6.130.0100.08021.11
5.6.120.0100.03720.99
5.6.110.0070.08321.04
5.6.100.0100.06021.10
5.6.90.0070.07321.03
5.6.80.0100.07020.55
5.6.70.0070.07320.45
5.6.60.0170.07020.35
5.6.50.0100.07020.45
5.6.40.0030.09020.44
5.6.30.0000.08020.48
5.6.20.0030.04020.33
5.6.10.0200.06720.38
5.6.00.0170.07320.39
5.5.380.0100.05020.43
5.5.370.0100.03720.43
5.5.360.0030.04320.52
5.5.350.0070.04320.45
5.5.340.0030.08720.84
5.5.330.0070.08320.84
5.5.320.0170.07020.67
5.5.310.0170.08020.91
5.5.300.0030.04020.86
5.5.290.0070.07720.87
5.5.280.0030.08720.67
5.5.270.0170.04720.85
5.5.260.0130.04320.80
5.5.250.0070.05020.63
5.5.240.0200.07320.31
5.5.230.0000.06020.28
5.5.220.0070.05320.30
5.5.210.0000.04320.23
5.5.200.0100.07720.21
5.5.190.0030.08320.25
5.5.180.0100.07720.21
5.5.160.0030.06720.18
5.5.150.0030.07020.02
5.5.140.0130.05720.25
5.5.130.0070.07020.28
5.5.120.0030.07720.25
5.5.110.0070.07720.10
5.5.100.0100.07320.14
5.5.90.0100.04020.10
5.5.80.0070.08020.09
5.5.70.0030.04320.09
5.5.60.0030.05720.11
5.5.50.0170.03720.16
5.5.40.0070.04720.13
5.5.30.0070.08020.18
5.5.20.0000.05320.14
5.5.10.0030.04720.15
5.5.00.0000.04320.10
5.4.450.0030.07719.51
5.4.440.0030.06019.20
5.4.430.0170.06719.54
5.4.420.0030.06319.46
5.4.410.0030.05319.24
5.4.400.0000.08319.06
5.4.390.0070.06719.09
5.4.380.0030.03719.18
5.4.370.0100.08019.05
5.4.360.0070.07718.91
5.4.350.0030.08018.87
5.4.340.0030.07719.21
5.4.320.0030.05018.88
5.4.310.0130.05719.16
5.4.300.0100.06319.05
5.4.290.0030.07018.84
5.4.280.0030.08718.84
5.4.270.0130.06319.02
5.4.260.0130.07018.85
5.4.250.0030.08319.22
5.4.240.0030.07719.03
5.4.230.0000.04718.87
5.4.220.0030.05019.12
5.4.210.0170.06318.86
5.4.200.0070.03719.11
5.4.190.0100.04319.11
5.4.180.0030.05719.04
5.4.170.0030.07719.20
5.4.160.0030.06018.93
5.4.150.0100.07019.02
5.4.140.0170.06316.51
5.4.130.0070.07016.24
5.4.120.0070.04716.45
5.4.110.0070.03316.55
5.4.100.0030.07316.56
5.4.90.0030.04716.32
5.4.80.0030.03716.38
5.4.70.0070.03316.36
5.4.60.0070.03316.37
5.4.50.0030.03316.46
5.4.40.0070.06016.39
5.4.30.0070.03316.31
5.4.20.0100.03016.46
5.4.10.0030.03716.35
5.4.00.0000.04015.87
5.3.290.0030.04014.72
5.3.280.0030.08014.65
5.3.270.0030.07014.58
5.3.260.0000.07314.58
5.3.250.0030.04314.61
5.3.240.0170.06314.64
5.3.230.0000.07014.71
5.3.220.0070.04714.61
5.3.210.0100.04014.68
5.3.200.0100.03314.61
5.3.190.0070.03714.71
5.3.180.0000.04314.66
5.3.170.0000.04014.75
5.3.160.0030.03714.68
5.3.150.0070.03314.50
5.3.140.0030.03014.60
5.3.130.0100.03714.62
5.3.120.0070.03714.52
5.3.110.0030.03314.69
5.3.100.0030.04014.06
5.3.90.0030.03713.99
5.3.80.0100.02714.04
5.3.70.0100.03314.07
5.3.60.0000.03714.11
5.3.50.0030.03714.02
5.3.40.0030.04014.12
5.3.30.0070.03313.99
5.3.20.0030.03013.77
5.3.10.0000.04013.71
5.3.00.0030.03013.67
5.2.170.0000.03312.08
5.2.160.0030.02712.08
5.2.150.0030.02712.08
5.2.140.0000.02712.08
5.2.130.0000.03012.08
5.2.120.0000.03012.08
5.2.110.0000.03012.08
5.2.100.0000.03312.08
5.2.90.0000.03012.08
5.2.80.0030.03012.08
5.2.70.0000.03312.08
5.2.60.0000.03012.08
5.2.50.0030.03012.08
5.2.40.0000.02712.08
5.2.30.0000.02712.08
5.2.20.0070.02312.08
5.2.10.0070.02012.08
5.2.00.0030.02312.08
5.1.60.0000.02712.08
5.1.50.0000.02312.08
5.1.40.0070.01712.08
5.1.30.0030.02012.08
5.1.20.0000.03012.08
5.1.10.0030.02012.08
5.1.00.0000.03012.08
5.0.50.0000.01712.08
5.0.40.0000.01712.08
5.0.30.0000.02712.08
5.0.20.0000.01712.08
5.0.10.0000.02012.08
5.0.00.0000.03012.08
4.4.90.0000.01712.08
4.4.80.0000.01712.08
4.4.70.0030.01312.08
4.4.60.0000.01312.08
4.4.50.0000.01312.08
4.4.40.0000.02012.08
4.4.30.0000.01312.08
4.4.20.0000.01312.08
4.4.10.0000.01312.08
4.4.00.0030.02312.08
4.3.110.0000.01712.08
4.3.100.0000.01312.08
4.3.90.0000.01312.08
4.3.80.0000.02312.08
4.3.70.0030.01312.08
4.3.60.0030.01012.08
4.3.50.0030.01312.08
4.3.40.0000.02712.08
4.3.30.0000.01312.08
4.3.20.0000.01712.08
4.3.10.0000.01312.08
4.3.00.0000.01312.08

preferences:
37.19 ms | 401 KiB | 5 Q