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<?php |
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/** |
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* Matching Text Content. |
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* |
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* This example shows one way of matching text content. |
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* The `:contains()` pseudo-class requires that the ENTIRE CONTENTS |
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* of an element match exactly. But sometimes what we want is a way |
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* to match just part of the contents of an element. This example |
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* illustrates how to accomplish this with a filter callback. |
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* |
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* As of QueryPath 2.1beta2, `:contains()` performs a substring match instead of |
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* and exact match, so the method outline below is roughly the same as merely |
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* using `:contains(Release)`. |
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* |
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* |
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* @author M Butcher <[email protected]> |
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* @license LGPL The GNU Lesser GPL (LGPL) or an MIT-like license. |
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*/ |
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/** Include QueryPath. */ |
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require_once '../src/QueryPath/QueryPath.php'; |
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/** |
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* Check if the string 'Release' is in the text content of any matched nodes. |
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* |
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* Returns TRUE if the text is found, FALSE otherwise. Anytime a filter callback |
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* returns FALSE, QueryPath will remove it from the matches. |
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* |
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* Note that $item is a DOMNode (actually, a DOMElement). So if we wanted to do QueryPath |
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* manipulations on it, we could wrap it in a `qp()`. |
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*/ |
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function exampleCallback($index, $item) { |
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$text = qp($item)->text(); |
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return strpos($text, 'Release') !== FALSE; |
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} |
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/* |
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* This is the QueryPath call. |
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* |
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* First we fetch the remote page, parse it, and grab just the `a` tags inside of the summary. |
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* Then we filter the results through our callback. |
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* Finally, we fetch all of the matching text and print it. |
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* |
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* NOTE: If you are using PHP 5.3, you can define the callback inline instead of separating it |
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* into a stand-alone function. |
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*/ |
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print htmlqp('http://php.net/', 'h1.summary a') |
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->filterCallback('exampleCallback') |
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->textImplode(PHP_EOL); |
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?> |
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arthurkushman /
querypath
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