RecursiveFilterIterator::__construct — 從 RecursiveIterator 建立 RecursiveFilterIterator
RecursiveFilterIterator::getChildren — 傳回包含在 RecursiveFilterIterator 中的內部迭代器的子項目
RecursiveFilterIterator::hasChildren — 檢查內部迭代器的目前元素是否有子項目

發現問題了嗎？

學習如何改進此頁面 • 提交拉取請求 • 回報錯誤

＋新增筆記

使用者貢獻的筆記 2 則筆記

向上

向下

lemats ¶

13 年前

遞迴目錄/檔案列表，過濾掉 ".svn"

<?php

class MyRecursiveFilterIterator extends RecursiveFilterIterator {

 public static $FILTERS = array(
 '.svn',
 );

 public function accept() {
 return !in_array(
 $this->current()->getFilename(),
 self::$FILTERS,
 true
 );
 }

}

$dirItr = new RecursiveDirectoryIterator('/sample/path');
$filterItr = new MyRecursiveFilterIterator($dirItr);
$itr = new RecursiveIteratorIterator($filterItr, RecursiveIteratorIterator::SELF_FIRST);
foreach ($itr as $filePath => $fileInfo) {
 echo $fileInfo->getFilename() . PHP_EOL;
}

?>

向上

向下

Russell Dias ¶

14 年前

我必須建立一個過濾器來獲取多維陣列中大於特定數字的值。

希望對其他人有幫助

<?php
類別 GreaterThanFilter 繼承 RecursiveFilterIterator {
 protected $limit;

 public function __construct(RecursiveIterator $recursiveIter, $limit) {
 $this->limit = $limit;
 parent::__construct($recursiveIter);
 }
 public function accept() {
 return $this->hasChildren() || strlen($this->current()) >= $this->limit;
 }
 public function getChildren() {
 return new self($this->getInnerIterator()->getChildren(), $this->limit);
 }
}
$iter = new RecursiveArrayIterator($array);
$filter = new GreaterThanFilter($iter, 5);

foreach(new RecursiveIteratorIterator($filter) as $key => $value)
{
 echo $value . "\n";
}
?>

＋新增筆記