3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rgb2cmyk($r, $g, $b) { $c = 255 - $r; $m = 255 - $g; $y = 255 - $b; $b = min($c, $m, $y); $c = round(($c - $b) / (255 - $b)); $m = round(($m - $b) / (255 - $b)); $y = round(($y - $b) / (255 - $b)); $k = round($b / 255); return array($c, $m, $y, $k); } function cmyk2rgb($c, $m, $y, $k) { $r = 255 - round(255 * ($c - $c * $k - $k)); $g = 255 - round(255 * ($m - $m * $k - $k)); $b = 255 - round(255 * ($y - $y * $k - $k)); return array($r, $g, $b); } for ($i = 0; $i < 20; $i++) { $r = rand() % 255; $g = rand() % 255; $b = rand() % 255; echo "$i. $r, $g, $b -> "; $cmyk = rgb2cmyk($r, $g, $b); echo "{$cmyk[0]}, {$cmyk[1]}, {$cmyk[2]}, {$cmyk[3]} -> "; $rgb = cmyk2rgb($c, $m, $y, $k); echo "{$rgb[0]}, {$rgb[1]}, {$rgb[2]}"; echo "\n"; }

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)
7.2.00.0030.01019.23
7.1.70.0090.00017.09
7.1.60.0100.01419.33
7.1.50.0030.01916.99
7.1.00.0000.08022.34
7.0.200.0060.01016.41
7.0.140.0030.07321.96
7.0.100.0070.08320.09
7.0.90.0370.05020.03
7.0.80.0030.05020.02
7.0.70.0070.07019.95
7.0.60.0030.08719.99
7.0.50.0370.06720.34
7.0.40.0170.06720.10
7.0.30.0130.08720.18
7.0.20.0030.09020.17
7.0.10.0070.05720.03
7.0.00.0070.05319.93
5.6.280.0030.07321.03
5.6.250.0070.07020.61
5.6.240.0130.05720.67
5.6.230.0070.04720.57
5.6.220.0100.08320.67
5.6.210.0170.06320.61
5.6.200.0100.08320.94
5.6.190.0100.07721.01
5.6.180.0070.05320.93
5.6.170.0130.07721.04
5.6.160.0000.07720.93
5.6.150.0070.09021.04
5.6.140.0100.07720.91
5.6.130.0130.06321.01
5.6.120.0100.08021.16
5.6.110.0030.08321.04
5.6.100.0030.07320.94
5.6.90.0130.06321.00
5.6.80.0200.07020.50
5.6.70.0070.07720.40
5.6.60.0000.05720.31
5.6.50.0070.08320.52
5.6.40.0130.08320.30
5.6.30.0100.07320.53
5.6.20.0130.06320.48
5.6.10.0130.07320.39
5.6.00.0070.07320.36
5.5.380.0070.06720.36
5.5.370.0070.06320.36
5.5.360.0070.07320.41
5.5.350.0130.08020.44
5.5.340.0030.08720.93
5.5.330.0100.08320.78
5.5.320.0070.08320.84
5.5.310.0030.06720.64
5.5.300.0100.04720.76
5.5.290.0070.09020.76
5.5.280.0030.08020.64
5.5.270.0030.07320.91
5.5.260.0130.07320.79
5.5.250.0100.05020.64
5.5.240.0200.07020.12
5.5.230.0070.08320.28
5.5.220.0100.06720.13
5.5.210.0170.07320.18
5.5.200.0130.07320.19
5.5.190.0070.07320.13
5.5.180.0100.08020.27
5.5.160.0070.06020.27
5.5.150.0130.06720.17
5.5.140.0130.07720.23
5.5.130.0200.06320.36
5.5.120.0200.07720.11
5.5.110.0070.06020.24
5.5.100.0070.04720.13
5.5.90.0170.06020.07
5.5.80.0130.07020.13
5.5.70.0130.08019.94
5.5.60.0100.05020.16
5.5.50.0170.07020.11
5.5.40.0170.07020.14
5.5.30.0030.07320.09
5.5.20.0100.08320.05
5.5.10.0030.08019.96
5.5.00.0230.07020.03
5.4.450.0070.08319.45
5.4.440.0200.07019.54
5.4.430.0230.06019.41
5.4.420.0100.05319.29
5.4.410.0000.07719.22
5.4.400.0030.06719.11
5.4.390.0100.06319.14
5.4.380.0170.07018.94
5.4.370.0100.08019.09
5.4.360.0200.05718.96
5.4.350.0030.07719.21
5.4.340.0070.07019.09
5.4.320.0030.07719.29
5.4.310.0100.07319.11
5.4.300.0070.08018.93
5.4.290.0270.06719.20
5.4.280.0100.07719.13
5.4.270.0100.05319.09
5.4.260.0070.06318.96
5.4.250.0030.07719.26
5.4.240.0100.07718.93
5.4.230.0130.06719.21
5.4.220.0030.04719.20
5.4.210.0070.07719.13
5.4.200.0070.07018.96
5.4.190.0130.07019.00
5.4.180.0070.07319.21
5.4.170.0070.07319.10
5.4.160.0070.04319.07
5.4.150.0130.07719.01
5.4.140.0070.07016.32
5.4.130.0100.07016.32
5.4.120.0030.07316.54
5.4.110.0100.07016.59
5.4.100.0100.07716.38
5.4.90.0000.07716.62
5.4.80.0030.07316.31
5.4.70.0070.04016.57
5.4.60.0030.05016.38
5.4.50.0130.06316.43
5.4.40.0030.07316.43
5.4.30.0000.04316.46
5.4.20.0100.05016.46
5.4.10.0030.06716.46
5.4.00.0100.07315.91
5.3.290.0070.08014.79
5.3.280.0030.08314.66
5.3.270.0030.07014.60
5.3.260.0070.05014.73
5.3.250.0170.06714.73
5.3.240.0100.07014.64
5.3.230.0000.05314.59
5.3.220.0070.05714.59
5.3.210.0070.07314.67
5.3.200.0070.07014.60
5.3.190.0100.06714.59
5.3.180.0070.06014.68
5.3.170.0100.07014.68
5.3.160.0100.07714.59
5.3.150.0100.06714.60
5.3.140.0030.07314.60
5.3.130.0070.06014.65
5.3.120.0030.08014.57
5.3.110.0100.07014.68
5.3.100.0100.05714.14
5.3.90.0000.08014.02
5.3.80.0030.08014.08
5.3.70.0030.08014.14
5.3.60.0100.07014.12
5.3.50.0000.08313.98
5.3.40.0030.04313.93
5.3.30.0100.07014.05
5.3.20.0270.06013.73
5.3.10.0070.07013.77
5.3.00.0070.07313.78
5.2.170.0030.06712.61
5.2.160.0070.05312.61
5.2.150.0070.05712.61
5.2.140.0000.07012.61
5.2.130.0030.05312.61
5.2.120.0070.06312.61
5.2.110.0170.05712.61
5.2.100.0070.06312.61
5.2.90.0030.06012.61
5.2.80.0000.07012.61
5.2.70.0030.06312.61
5.2.60.0100.04012.61
5.2.50.0100.05312.61
5.2.40.0030.06712.61
5.2.30.0000.04312.61
5.2.20.0130.05012.61
5.2.10.0070.06012.61
5.2.00.0100.05712.61
5.1.60.0100.05012.61
5.1.50.0000.06312.61
5.1.40.0070.05712.61
5.1.30.0000.06012.61
5.1.20.0070.05312.61
5.1.10.0030.05712.61
5.1.00.0070.05312.61
5.0.50.0070.04312.61
5.0.40.0000.05012.61
5.0.30.0070.06012.61
5.0.20.0030.04312.61
5.0.10.0070.04312.61
5.0.00.0030.07012.61
4.4.90.0000.03312.61
4.4.80.0000.03712.61
4.4.70.0070.03012.61
4.4.60.0030.03712.61
4.4.50.0000.03312.61
4.4.40.0070.05012.61
4.4.30.0130.02712.61
4.4.20.0000.04012.61
4.4.10.0070.02712.61
4.4.00.0070.05012.61
4.3.110.0030.03012.61
4.3.100.0030.03312.61
4.3.90.0070.03012.61
4.3.80.0030.05312.61
4.3.70.0000.03312.61
4.3.60.0030.03012.61
4.3.50.0170.02712.61
4.3.40.0000.05312.61
4.3.30.0070.03312.61
4.3.20.0030.04012.61
4.3.10.0000.03712.61
4.3.00.0000.03712.61

preferences:
28.32 ms | 401 KiB | 5 Q