替換對象數組中的字符串PHP

Question

我認爲這很容易，但變得很難。所有我想要做的是替換對象中的值，然後打印出更改的字符串。順便說一句，這在Joomla內。這並不重要，只是爲了解釋代碼中的所有JHTML /和JURi內容。

，我一直在努力的代碼是...

<?php 

// Display the child select box. 
if (isset($this->containers) && count($this->containers)): 
    $items = str_replace("Your Favorite Places", "Browse By Region", $this->containers); 
    echo JHtml::_('select.genericlist', $items, 'finder-containers','onchange="document.location=this.value; return false;"', 'link', 'indented', JUri::getInstance()->toString(array('path'))); 
endif; 

?> 

所以我str_replace線就是我有問題。 $this->containers只是一個狀態數組和其他東西回聲出下拉框。我試圖在最後一行發出回聲之前進行替換，但「你最喜歡的地方」這個詞仍然存在。我必須把這個放在foreach循環或類似的東西嗎？

這裏是一個局部的print_r（其實我想替換字符串是它。分類標題=>你喜歡的地方）

Array (
    [0] => stdClass Object (
     [category_id] => 1 
     [title]  => Gallery 
     [alias]  => gallery 
     [slug]  => 1:gallery 
     [level]  => 0 
     [my_items] => 0 
     [url]   => index.php?option=com_gallery&view=images&category_id=1 
     [route]  => index.php?option=com_gallery&view=images&category_id=1:gallery&Itemid=1766 
     [link]  => /your-favorite-places/categories/gallery.html 
     [indented] => Gallery 
    ) 

    [1] => stdClass Object (
     [category_id] => 164 
     [title]  => Your Favorite Places 
     [alias]  => your-favorite-places 
     [slug]  => 164:gallery/your-favorite-places 
     [level]  => 1 
     [my_items] => 0 
     [url]   => index.php?option=com_gallery&view=images&category_id=164 
     [route]  => index.php?option=com_gallery&view=images&category_id=164:gallery/your-favorite-places&Itemid=3711 
     [link]  => /your-favorite-places/gallery.html 
     [indented] => Your Favorite Places 
    ) 

    [2] => stdClass Object (
     [category_id] => 87 
     [title]  => North America 
     [alias]  => north-america 
     [slug]  => 87:gallery/your-favorite-places/north-america 
     [level]  => 2 
     [my_items] => 0 
     [url]   => index.php?option=com_gallery&view=images&category_id=87 
     [route]  => index.php?option=com_gallery&view=images&category_id=87:gallery/your-favorite-places/north-america&Itemid=1775 
     [link]  => /your-favorite-places/north-america.html 
     [indented] =>  North America 
    ) 

Answer 1

物業$this->containers是對象的數組。

您將需要遍歷此數組，訪問每個對象的title屬性，並替換該屬性的字符串值（如果它是正確的字符串）。

所以......

擺脫這個塊：

$items = array(); // Create an array to load the objects in as values. 
foreach($this->containers as $object) { // Iterate through $this->containers, which is an array. Load the object into temporary variable $object. 
    if (strpos($object->title, 'Your Favorite Places') !== false) { // If the title property contains a string you're looking for, replace it with the value you want. 
     $object->title = str_replace('Your Favorite Places', 'Browse By Region', $object->title); 
    } 
    if (strpos($object->indented, 'Your Favorite Places') !== false) { // Should work with any property value with whitespaces also. 
     $object->indented = str_replace('Your Favorite Places', 'Browse By Region', $object->indented); 
    } 
    $items[] = $object; // Load the object into array $items. 
} 

：

$items = str_replace("Your Favorite Places", "Browse By Region", $this->containers); 

這條線將其更換210

編輯：我添加了一種方法來檢查部分字符串而不是整個字符串，並且替換部分字符串匹配以保留空格。

Answer 2

如果我猜的話，我想說的字符串「你最喜歡的地方「在$ this-> containers的關鍵字中。雖然str_replace（）將對數組進行迭代，但它會遍歷值而不是鍵。

我想嘗試這樣的：從Stegrex

foreach($this->containers as $key => $value) { 
    if ($key == "Your Favorite Places") { 
     $items["Browse By Region"] = $value; 
    } else { 
     $items[$key] = $value; 
    } 
} 

編輯：在循環中變更=來=>