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run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = '^4Hello World ^5Foo^8Bar'; $colorMap = array( '000000', // 0 'ff0000', // 1 '00ff00', // 2 '00ff00', // 3 '00ff00', // 4 '00ff00', // 5 '00ff00', // 6 '00ff00', // 7 '00ff00', // 8 ); $parts = preg_split('/\^(\d)/', $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE); $result = ''; foreach($parts as $idx => $part) if((($idx % 2) === 0) && isset($colorMap[(int)$part])) $result .= sprintf('<span style="color:#%s">%s</span>', $colorMap[(int)$part], $parts[$idx + 1]); print $result;
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<span style="color:#00ff00">Hello World </span><span style="color:#00ff00">Foo</span><span style="color:#00ff00">Bar</span>