| <? | <? |
| /* | /* |
| @wordCloud | @wordCloud |
| Author: Derek Harvey | Author: Derek Harvey |
| Website: www.lotsofcode.com | Website: www.lotsofcode.com |
| @Description | @Description |
| PHP Tag Cloud Class, a nice and simple way to create a php tag cloud, a database and non-database solution. | PHP Tag Cloud Class, a nice and simple way to create a php tag cloud, a database and non-database solution. |
| */ | */ |
| class wordCloud | class wordCloud |
| { | { |
| var $wordsArray = array(); | var $wordsArray = array(); |
| var $refsArray = array(); | var $refsArray = array(); |
| /* | /* |
| * PHP 5 Constructor | * PHP 5 Constructor |
| * | * |
| * @param array $words | * @param array $words |
| * @return void | * @return void |
| */ | */ |
| function __construct($words = false) | function __construct($words = false) |
| { | { |
| if ($words !== false && is_array($words)) | if ($words !== false && is_array($words)) |
| { | { |
| foreach ($words as $key => $value) | foreach ($words as $key => $value) |
| { | { |
| $this->addWord($value); | $this->addWord($value); |
| } | } |
| } | } |
| } | } |
| /* | /* |
| * PHP 4 Constructor | * PHP 4 Constructor |
| * | * |
| * @param array $words | * @param array $words |
| * @return void | * @return void |
| */ | */ |
| function wordCloud($words = false) | function wordCloud($words = false) |
| { | { |
| $this->__construct($words); | $this->__construct($words); |
| } | } |
| /* | /* |
| * Assign word to array | * Assign word to array |
| * | * |
| * @param string $word | * @param string $word |
| * @return string | * @return string |
| */ | */ |
| function addWord($word, $value = 1, $ref = 0) | function addWord($word, $value = 1, $ref = 0) |
| { | { |
| if (array_key_exists($word, $this->wordsArray)) | if (array_key_exists($word, $this->wordsArray)) |
| $this->wordsArray[$word] += $value; | $this->wordsArray[$word] += $value; |
| else | else |
| $this->wordsArray[$word] = $value; | $this->wordsArray[$word] = $value; |
| $this->refsArray[$word] = $ref; | $this->refsArray[$word] = $ref; |
| return $this->wordsArray[$word]; | return $this->wordsArray[$word]; |
| } | } |
| /* | /* |
| * Shuffle associated names in array | * Shuffle associated names in array |
| */ | */ |
| function shuffleCloud() | function shuffleCloud() |
| { | { |
| $keys = array_keys($this->wordsArray); | $keys = array_keys($this->wordsArray); |
| shuffle($keys); | shuffle($keys); |
| if (count($keys) && is_array($keys)) | if (count($keys) && is_array($keys)) |
| { | { |
| $tmpArray = $this->wordsArray; | $tmpArray = $this->wordsArray; |
| $this->wordsArray = array(); | $this->wordsArray = array(); |
| foreach ($keys as $key => $value) | foreach ($keys as $key => $value) |
| $this->wordsArray[$value] = $tmpArray[$value]; | $this->wordsArray[$value] = $tmpArray[$value]; |
| } | } |
| } | } |
| /* | /* |
| * Calculate size of words array | * Calculate size of words array |
| */ | */ |
| function getCloudSize() | function getCloudSize() |
| { | { |
| return array_sum($this->wordsArray); | return array_sum($this->wordsArray); |
| } | } |
| /* | /* |
| * Get the class range using a percentage | * Get the class range using a percentage |
| * | * |
| * @returns int $class | * @returns int $class |
| */ | */ |
| function getClassFromPercent($percent) | function getClassFromPercent($percent) |
| { | { |
| if ($percent >= 99) | if ($percent >= 99) |
| $class = 1; | $class = 1; |
| else if ($percent >= 70) | else if ($percent >= 70) |
| $class = 2; | $class = 2; |
| else if ($percent >= 60) | else if ($percent >= 60) |
| $class = 3; | $class = 3; |
| else if ($percent >= 50) | else if ($percent >= 50) |
| $class = 4; | $class = 4; |
| else if ($percent >= 40) | else if ($percent >= 40) |
| $class = 5; | $class = 5; |
| else if ($percent >= 30) | else if ($percent >= 30) |
| $class = 6; | $class = 6; |
| else if ($percent >= 20) | else if ($percent >= 20) |
| $class = 7; | $class = 7; |
| else if ($percent >= 10) | else if ($percent >= 10) |
| $class = 8; | $class = 8; |
| else if ($percent >= 5) | else if ($percent >= 5) |
| $class = 9; | $class = 9; |
| else | else |
| $class = 0; | $class = 0; |
| return $class; | return $class; |
| } | } |
| /* | /* |
| * Create the HTML code for each word and apply font size. | * Create the HTML code for each word and apply font size. |
| * | * |
| * @returns string $spans | * @returns string $spans |
| */ | */ |
| function showCloud($returnType = "html") | function showCloud($returnType = "html") |
| { | { |
| $this->shuffleCloud(); | $this->shuffleCloud(); |
| $this->max = max($this->wordsArray); | $this->max = max($this->wordsArray); |
| if (is_array($this->wordsArray)) | if (is_array($this->wordsArray)) |
| { | { |
| $return = ($returnType == "html" ? "" : ($returnType == "array" ? array() : "")); | $return = ($returnType == "html" ? "" : ($returnType == "array" ? array() : "")); |
| foreach ($this->wordsArray as $word => $popularity) | foreach ($this->wordsArray as $word => $popularity) |
| { | { |
| $sizeRange = $this->getClassFromPercent(($popularity / $this->max) * 100); | $sizeRange = $this->getClassFromPercent(($popularity / $this->max) * 100); |
| if ($returnType == "array") | if ($returnType == "array") |
| { | { |
| $return[$word]['word'] = $word; | $return[$word]['word'] = $word; |
| $return[$word]['ref'] = $this->refsArray[$word]; | $return[$word]['ref'] = $this->refsArray[$word]; |
| $return[$word]['sizeRange'] = $sizeRange; | $return[$word]['sizeRange'] = $sizeRange; |
| if ($currentColour) | if ($currentColour) |
| $return[$word]['randomColour'] = $currentColour; | $return[$word]['randomColour'] = $currentColour; |
| } | } |
| else if ($returnType == "html") | else if ($returnType == "html") |
| { | { |
| $return .= "<span class='word size{$sizeRange}'> {$word} </span>"; | $return .= "<span class='word size{$sizeRange}'> {$word} </span>"; |
| } | } |
| } | } |
| return $return; | return $return; |
| } | } |
| } | } |
| } | } |
| ?> | ?> |