This question already has an answer here: What does “=>” mean in PHP? 6 answers Reference — What does this symbol mean in PHP? 18 answers You have a multi dimensional array, so facebook , google and twitter are elements of the 1st dimension of the $metadata array and they are arrays themselves, here lies the multi dimension. The => is just like an arrow pointing to the value/data.
这个问题在这里已经有了答案： “=>”在PHP中意味着什么？ 6个答案 参考 - 这个符号在PHP中的含义是什么？ 18个答案 你有一个多维数组，所以facebook ， google和twitter是$ metadata数组第一维的元素，它们本身就是数组，这里就是多维度。 =>就像指向值/数据的箭头一样。 访问第一维将是$ metadata ['twitter']; 或$ metadata [2]; 这是相同的陈述，这将带回Twitter数组的元素/键。 访问第二个维度
This question already has an answer here: What does “=>” mean in PHP? 6 answers => is the separator for associative arrays. In the context of that foreach loop, it assigns the key of the array to the value. What does "=>" mean in PHP?
这个问题在这里已经有了答案： “=>”在PHP中意味着什么？ 6个答案 =>是关联数组的分隔符。 在该foreach循环的上下文中，它将数组的键分配给值。 “=>”在PHP中意味着什么？
This question already has an answer here: What does “=>” mean in PHP? 6 answers Reference — What does this symbol mean in PHP? 18 answers =>符号用于定义数组键值对$array = array("key1"=>"value1","key2"=>"value2");
这个问题在这里已经有了答案： “=>”在PHP中意味着什么？ 6个答案 参考 - 这个符号在PHP中的含义是什么？ 18个答案 =>符号用于定义数组键值对$array = array("key1"=>"value1","key2"=>"value2");
Possible Duplicate: What does “=>” mean in PHP? I'm learning about arrays and am not certain what => means or does. Assignment of a value to a named key. http://www.php.net/manual/en/language.operators.assignment.php $example = array('color' => 'blue'); echo $example['color']; //prints blue I believe it is just syntax for writing array literals that behave like maps / dicti
可能重复： “=>”在PHP中意味着什么？ 我正在学习数组，并不确定是什么=>意味着什么。 赋值给一个已命名的键。 http://www.php.net/manual/en/language.operators.assignment.php $example = array('color' => 'blue'); echo $example['color']; //prints blue 我相信这只是编写像maps / dictionaries一样行为的数组文字的语法。 $ mydict = array（'hello'=>'world'）; 以上是一个元
This question already has an answer here: What does “=>” mean in PHP? 6 answers That is a key-value-pair enumeration. Basically, it's iterating over the collection $fields and at each iteration, it binds the variable $a to the key, and the variable $b to the value. foreach($fields as $a => $b) { // iterates over all key-value pairs in the collection $fields // a
这个问题在这里已经有了答案： “=>”在PHP中意味着什么？ 6个答案 这是一个键值对枚举。 基本上，它遍历集合$fields并且在每次迭代时，它将变量$a绑定到键，并将变量$b绑定到该值。 foreach($fields as $a => $b) { // iterates over all key-value pairs in the collection $fields // at each iteration (for each key-value pair in the collection) // $a is bound to the key /
Possible Duplicate: What does “=>” mean in PHP? Reference - What does this symbol mean in PHP? I see this symbol in a lot of PHP code. I can't figure out what it means or what it does.. Is it really an operator ? Do you mean => ? If so, it's for initializing array keys (or indexes if you prefer). Like this: $values = array( 'foo' => 'bar' ); This will initiazl
可能重复： “=>”在PHP中意味着什么？ 参考 - 这个符号在PHP中的含义是什么？ 我在很多PHP代码中看到了这个符号。 我无法弄清楚它是什么意思或它做了什么。 它真的是一个运营商吗？ 你的意思是=> ？ 如果是这样，它用于初始化数组键（或者如果您愿意，可以使用索引）。 喜欢这个： $values = array( 'foo' => 'bar' ); 这将启动一个名为foo的键值为bar的数组。 在php.net上阅读有关数组的更多信息
I've an array titled $photos as follows: Array ( [0] => Array ( [fileURL] => https://www.filepicker.io/api/file/UYUkZVHERGufB0enRbJo [filename] => IMG_0004.JPG ) [1] => Array ( [fileURL] => https://www.filepicker.io/api/file/WZeQAR4zRJaPyW6hDcza [filename] => IMG_0003.JPG ) ) Now I wa
我有一个标题为$photos的数组，如下所示： Array ( [0] => Array ( [fileURL] => https://www.filepicker.io/api/file/UYUkZVHERGufB0enRbJo [filename] => IMG_0004.JPG ) [1] => Array ( [fileURL] => https://www.filepicker.io/api/file/WZeQAR4zRJaPyW6hDcza [filename] => IMG_0003.JPG ) ) 现在我想创建
In the below code I understand that foreach $insuranceType_list is assigning the row of data to $l . What is the $k for? For index ? And @ in front of any variable could make the variable into a global one? Which means I can access it anywhere throughout my application? if(@$insuranceType_list){ foreach($insuranceType_list as $k=>$l){ $insuranceType_list[$k]->version_list = $this
在下面的代码中，我明白foreach $insuranceType_list将把数据行分配给$l 。 $k是多少$k ？ index ？ 任何变量前的@都可以使变量变成全局变量？ 这意味着我可以在整个应用程序的任何地方访问它 if(@$insuranceType_list){ foreach($insuranceType_list as $k=>$l){ $insuranceType_list[$k]->version_list = $this->mdl_quotation_template->getConditionTemplates('insurance_type_id='.$l->id); } }
I have this multidimensional array and I want to access a specific value without doing loop.. is it possible? here's the array: Array ( [0] => stdClass Object ( [akeebasubs_user_id] => 205 [user_id] => 268 [isbusiness] => 0 [businessname] => sci555 [occupation] => [vatnumber] => [viesregistered] => 0
我有这个多维数组，我想访问一个特定的值，而不做循环..是否有可能？ 这里是数组： Array ( [0] => stdClass Object ( [akeebasubs_user_id] => 205 [user_id] => 268 [isbusiness] => 0 [businessname] => sci555 [occupation] => [vatnumber] => [viesregistered] => 0 [taxauthority] => [address1] =>
I looked at this post to try and understand the object operator better: Where do we use the object operator "->" in PHP? But when I copied and pasted the php in the 2nd response, I just get a blank page when I run it. Here is my code: PHP: <?php class SimpleClass { // property declaration public $var = 'a default value'; // method declaration public fun
我看了这篇文章，试图更好地理解对象操作符：在PHP中，我们在哪里使用对象操作符“ - >”？ 但是当我在第二个响应中复制并粘贴php时，我只是在运行它时得到一个空白页。 这是我的代码： PHP： <?php class SimpleClass { // property declaration public $var = 'a default value'; // method declaration public function displayVar() { echo $this->var; } } $a = new Simple