Online PHP editor | output for NWRUK

<?php function word_cloud($words, $div_size = 400) { $tags = 0; $cloud = "<div style=\"width: {$div_size}px\">"; /* This word cloud generation algorithm was taken from the Wikipedia page on "word cloud" with some minor modifications to the implementation */ /* Initialize some variables */ $fmax = 96; /* Maximum font size */ $fmin = 8; /* Minimum font size */ $tmin = min($words); /* Frequency lower-bound */ $tmax = max($words); /* Frequency upper-bound */ foreach ($words as $word => $frequency) { if ($frequency > $tmin) { $font_size = floor( ( $fmax * ($frequency - $tmin) ) / ( $tmax - $tmin ) ); /* Define a color index based on the frequency of the word */ $r = $g = 0; $b = floor( 255 * ($frequency / $tmax) ); $color = '#' . sprintf('%02s', dechex($r)) . sprintf('%02s', dechex($g)) . sprintf('%02s', dechex($b)); } else { $font_size = 0; } if ($font_size >= $fmin) { $cloud .= "<span style=\"font-size: {$font_size}px; color: $color;\">$word</span> "; $tags++; } } $cloud .= "</div>"; return array($cloud, $tags); } $words = ['una' = 1, 'dos' => 2, '3' => 3]; var_dump(word_cloud($words));