PHP5.3闭包语法的具体讲解_PHP教程

1. $closure = function($param) { echo $param; };
3. //This one takes value of someVar and "stores" it in the closure's scope even if
4. //we later change the value of someVar outside it. We assume that $somerVar is defined before this
5. $closure2 = function($param) use ($someVar) { echo $param . ' ' . $someVar; };

比如PHP 5.3闭包语法在输出HTML中闭包很有用：

1. function item_list(array $items, $formatter = null) {
2. //create the default formatter
3. if($formatter == null) {
4. $formatter = function($row) {
5. return '

   ' . $row . '

   ';
6. };
7. }
9. $html = '

   Listing:

   ';
10. foreach($items as $item) {
11. $html .= $formatter($item);
12. }
14. return $html;
15. }

以上就是本文介绍的两种不同的PHP 5.3闭包语法的使用，希望对大家有所帮助。

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