3v4l.org

run code in 300+ PHP versions simultaneously

@ 2014-07-18T20:51:54Z

<?php

   function hsl2rgb($H, $S, $V) {
    $H *= 6;
    $h = intval($H);
    $H -= $h;
    $V *= 255;
    $m = $V*(1 - $S);
    $x = $V*(1 - $S*(1-$H));
    $y = $V*(1 - $S*$H);
    $a = [[$V, $x, $m], [$y, $V, $m],
          [$m, $V, $x], [$m, $y, $V],
          [$x, $m, $V], [$V, $m, $y]][$h];
    return sprintf("#%02X%02X%02X", $a[0], $a[1], $a[2]);
}

function hue($tstr) {
    #return unpack('L', hash('adler32', $tstr, true))[1];
	#adler32
	return crc32($tstr);
	#return md5($tstr);
}

$phrase = "1";
$col = hsl2rgb(hue($phrase)/0xFFFFFFFF, 0.4, 1);
printf('<pre><span style="background-color:%s">%f</span></pre>\n ', $col, hue($phrase)/0xFFFFFFFF);

$phrase = "2";
$col = hsl2rgb(hue($phrase)/0xFFFFFFFF, 0.4, 1);
printf('<pre><span style="background-color:%s">%f</span></pre>\n ', $col, hue($phrase)/0xFFFFFFFF);

$phrase = "3";
$col = hsl2rgb(hue($phrase)/0xFFFFFFFF, 0.4, 1);
printf('<pre><span style="background-color:%s">%f</span></pre>\n ', $col, hue($phrase)/0xFFFFFFFF);

Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: <pre><span style="background-color:#99F5FF">0.515090</span></pre>\n <pre><span style="background-color:#FFD999">0.104824</span></pre>\n <pre><span style="background-color:#99FFD3">0.428994</span></pre>\n
Output for 5.4.0 - 5.4.45: Parse error: syntax error, unexpected '[' in /in/kUQlb on line 13
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/kUQlb on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/kUQlb on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/kUQlb on line 11
Process exited with code 255.

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