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<?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));
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
array(2) { [0]=> string(146) "<div style="width: 400px"><span style="font-size: 48px; color: #0000aa;">dos</span> <span style="font-size: 96px; color: #0000ff;">3</span> </div>" [1]=> int(2) }
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/5ca9o on line 48
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/5ca9o on line 48
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5ca9o on line 48
Process exited with code 255.

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