Tag Cloud for MovableType
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Wed. Mar. 15th, 2006 12:16 PM
This code, working with MovableType, creates a tag cloud of tags entered into the keyword field of a blog entry. You can see the results and read my write-up which explains some other things that help with MovableType and tag clouds. I got this code from Al-Muhajabah and made a few minor tweaks. Put the PHP snippet below inside a MT template that creates a php page.
<?php
// Build the list of words and convert everything to lowercase.
$string = strtolower('<MTEntries lastn="9999"><$MTEntryKeywords remove_html="1" encode_php="q"$> </MTEntries>');
// Remove punctuation.
//$wordlist = preg_split('/\s*[\s+\.|\?|,|(|)|\-+|\'|\"|=|;|×|\$|\/|:|{|}]\s*/i', $string);
$wordlist = preg_split('/\s+|,/i',$string);
// Build an array of the unique words and number of times they occur.
$a = array_count_values( $wordlist );
// Sort the keys alphabetically.
ksort( $a );
// Print the data.
echo '<p style="background-color: #EEEEFF; padding:1em">';
// Assign a font-size to the word based on frequency of use.
foreach ($a as $word => $count) {
if ($count <= 1) { $size = 50;
} elseif ($count <= 3) { $size = 75;
} elseif ($count <= 5) { $size = 100;
} elseif ($count <= 10) { $size = 125;
} elseif ($count <= 25) { $size = 150;
} elseif ($count <= 50) { $size = 175;
} elseif ($count <= 75) { $size = 200;
} elseif ($count <= 100) { $size = 225;
} elseif ($count <= 125) { $size = 250;
} elseif ($count <= 140) { $size = 275;
} elseif ($count <= 155) { $size = 300;
} elseif ($count <= 170) { $size = 325;
} elseif ($count <= 200) { $size = 350;
} elseif ($count <= 225) { $size = 375;
} elseif ($count <= 250) { $size = 400;
} elseif ($count <= 275) { $size = 425;
}
// The keyword needs to be referenced 2 or more times to register.
if ($count >= 2) {
echo ' <span style="font-size: ' . $size . '%;"><a title="List of all ' . $count . ' entries tagged with ' . $word . '" rel="nofollow" href="/<$MTSearchScript$>?Template=technometria&IncludeBlogs=<$MTBlogID$>&SearchElement=keywords&search=' . $word .'">' . $word . '</a></acronym></span> '; }
}
echo '</p>';
?>
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