3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (phpversion() < '5.2.1') { die(); } 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', $val).'h'; } if ($val < 24*10) { return sprintf('%1.2f', $val/24).'d'; } if ($val < 168*10) { return sprintf('%1.2f', $val/168).'w'; } //if ($val < 730*10) { // return sprintf('%1.2f', $val/730).'m'; //} return sprintf('%1.2f', $val/8760).'y'; } function cmp($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($vals); echo sprintf("%7s %7s %8s %4s\n", 'num', 'str', 'time', 'cmp'); foreach ($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 %8s %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)
7.4.00.0100.01014.90
7.3.120.0040.01014.93
7.3.110.0090.00714.79
7.3.100.0030.01214.86
7.3.90.0050.00915.01
7.3.80.0030.01015.02
7.3.70.0050.01014.87
7.3.60.0060.00714.88
7.3.50.0030.01314.82
7.3.40.0050.00814.79
7.3.30.0050.01114.76
7.3.20.0080.00516.66
7.3.10.0040.00816.51
7.3.00.0050.00916.76
7.2.250.0030.01014.95
7.2.240.0030.01515.06
7.2.230.0040.01015.19
7.2.220.0060.00715.16
7.2.210.0070.00715.30
7.2.200.0080.00714.96
7.2.190.0050.01015.14
7.2.180.0070.00715.22
7.2.170.0070.00815.08
7.2.160.0070.00814.93
7.2.150.0050.00916.94
7.2.140.0080.00816.87
7.2.130.0070.00716.88
7.2.120.0040.01016.92
7.2.110.0040.00716.91
7.2.100.0090.00816.99
7.2.90.0060.00616.82
7.2.80.0080.00817.01
7.2.70.0020.01317.01
7.2.60.0060.00816.93
7.2.50.0060.00817.12
7.2.40.0060.00917.16
7.2.30.0090.00716.91
7.2.20.0050.00817.01
7.2.10.0030.01216.83
7.2.00.0030.01217.54
7.1.330.0100.00715.88
7.1.320.0060.00915.63
7.1.310.0040.00915.62
7.1.300.0030.01015.83
7.1.290.0060.00715.78
7.1.280.0040.01015.58
7.1.270.0070.00615.84
7.1.260.0080.00615.77
7.1.250.0050.00815.86
7.1.100.0060.00618.06
7.1.70.0040.00816.93
7.1.60.0160.00919.40
7.1.50.0070.01416.69
7.1.00.0000.08022.40
7.0.200.0000.00916.92
7.0.140.0030.07021.93
7.0.60.0100.07720.07
7.0.50.0070.08018.00
7.0.40.0030.05020.14
7.0.30.0330.07720.16
7.0.20.0200.04020.19
7.0.10.0030.04720.09
7.0.00.0130.03020.15
5.6.280.0170.06320.95
5.6.210.0070.08020.72
5.6.200.0100.08018.19
5.6.190.0030.07320.48
5.6.180.0300.05020.61
5.6.170.0270.06320.47
5.6.160.0000.06320.46
5.6.150.0100.05018.18
5.6.140.0070.04018.19
5.6.130.0030.08318.16
5.6.120.0070.05321.01
5.6.110.0130.06021.00
5.6.100.0070.08721.01
5.6.90.0100.03721.00
5.6.80.0030.06320.39
5.5.350.0070.08020.46
5.5.340.0070.03717.96
5.5.330.0070.04320.21
5.5.320.0230.05720.24
5.5.310.0330.04320.35
5.5.300.0070.04317.98
5.5.290.0070.07718.00
5.5.280.0030.08720.90
5.5.270.0030.06720.84
5.5.260.0030.04720.90
5.5.250.0030.08020.74
5.5.240.0300.07720.15
5.4.450.0370.04319.40
5.4.440.0230.04719.33
5.4.430.0230.04319.20
5.4.420.0570.04019.63
5.4.410.0200.03719.19
5.4.400.0430.04019.23
5.4.390.0430.04719.22
5.4.380.0730.06318.63
5.4.370.0830.05318.75
5.4.360.0730.05718.75
5.4.350.1270.06718.62
5.4.340.0970.07318.48
5.4.320.0100.03612.54
5.4.310.0050.04112.54
5.4.300.0070.03712.54
5.4.290.0060.03912.53
5.4.280.0070.03512.43
5.4.270.0040.03912.43
5.4.260.0040.04012.43
5.4.250.0080.03812.43
5.4.240.0080.05212.43
5.4.230.0070.04012.42
5.4.220.0090.05212.43
5.4.210.0110.05212.42
5.4.200.0060.05112.43
5.4.190.0070.05512.43
5.4.180.0180.04412.42
5.4.170.0140.05412.43
5.4.160.0090.05412.43
5.4.150.0070.05012.42
5.4.140.0110.07312.11
5.4.130.0040.04612.09
5.4.120.0140.06212.05
5.4.110.0040.04012.05
5.4.100.0070.03812.05
5.4.90.0080.06112.05
5.4.80.0120.05912.04
5.4.70.0080.03512.04
5.4.60.0080.03612.04
5.4.50.0050.04012.04
5.4.40.0050.03912.02
5.4.30.0040.04112.02
5.4.20.0120.04412.02
5.4.10.0080.05112.02
5.4.00.0090.04411.52
5.3.290.0110.05112.80
5.3.280.0110.03712.73
5.3.270.0080.04212.74
5.3.260.0040.04512.74
5.3.250.0080.03812.74
5.3.240.0070.04812.73
5.3.230.0110.04112.73
5.3.220.0050.04112.70
5.3.210.0090.04012.70
5.3.200.0090.03712.70
5.3.190.0120.04012.70
5.3.180.0070.03912.69
5.3.170.0060.04012.70
5.3.160.0040.04112.69
5.3.150.0090.03712.70
5.3.140.0070.03912.69
5.3.130.0130.05212.68
5.3.120.0110.04912.68
5.3.110.0080.04612.68
5.3.100.0170.05312.16
5.3.90.0090.06212.14
5.3.80.0070.05712.14
5.3.70.0110.05112.14
5.3.60.0100.05912.13
5.3.50.0110.04712.07
5.3.40.0110.04712.07
5.3.30.0060.05112.04
5.3.20.0140.04511.81
5.3.10.0120.06311.78
5.3.00.0100.03411.77
5.2.170.0090.0379.27
5.2.160.0070.0409.28
5.2.150.0100.0269.28
5.2.140.0050.0339.27
5.2.130.0050.0319.23
5.2.120.0030.0329.23
5.2.110.0070.0379.24
5.2.100.0100.0409.23
5.2.90.0060.0369.23
5.2.80.0060.0599.23
5.2.70.0040.0439.23
5.2.60.0120.0559.18
5.2.50.0120.0549.15
5.2.40.0150.0409.13
5.2.30.0060.0419.10
5.2.20.0060.0369.09
5.2.10.0230.0499.00
5.2.00.0070.0428.85
5.1.60.0060.0328.14
5.1.50.0210.0648.14
5.1.40.0020.0288.12
5.1.30.0070.0288.47
5.1.20.0090.0548.49
5.1.10.0050.0368.22
5.1.00.0040.0388.21
5.0.50.0040.0286.70
5.0.40.0030.0296.56
5.0.30.0020.0446.38
5.0.20.0050.0266.37
5.0.10.0080.0586.34
5.0.00.0050.0316.34
4.4.90.0040.0154.78
4.4.80.0030.0164.75
4.4.70.0010.0174.75
4.4.60.0040.0144.76
4.4.50.0020.0184.77
4.4.40.0030.0304.71
4.4.30.0040.0174.76
4.4.20.0050.0174.85
4.4.10.0030.0184.85
4.4.00.0010.0264.76
4.3.110.0030.0174.67
4.3.100.0040.0204.67
4.3.90.0030.0164.63
4.3.80.0040.0264.62
4.3.70.0040.0194.63
4.3.60.0040.0164.63
4.3.50.0030.0164.63
4.3.40.0060.0234.57
4.3.30.0080.0283.39
4.3.20.0030.0213.36
4.3.10.0050.0253.32
4.3.00.0330.01715.91

preferences:
34.38 ms | 400 KiB | 5 Q