Question

$var是一个数组：

Array (
    [0] => stdClass Object ( [ID] => 113 [title] => text )
    [1] => stdClass Object ( [ID] => 114 [title] => text text text )
    [2] => stdClass Object ( [ID] => 115 [title] => text text )
    [3] => stdClass Object ( [ID] => 116 [title] => text )
)

我们如何从某些[title]致电[ID]？（不接触[0], [1], [2], [3]）

例如，如果我们致电$var['114']['title]，则应提供text text text

Answer 1

你不能。

您可以创建一个具有ID作为键的新数组，之后您可以快速访问该标题，或者每次需要搜索某个ID时都可以遍历该数组。

Answer 2

为什么不把它构造成：

Array (
    [113] => stdClass Object ( [title] => text )
    [114] => stdClass Object ( [title] => text text text )
    [115] => stdClass Object ( [title] => text text )
    [116] => stdClass Object ( [title] => text )
)

问题解决了。

说出您的记录在$records。您可以将其转换为：

$newArray = array();
foreach ($records as $record) {
    $id = $record->id;
    unset($record->id);
    $newArray[$id] = $record;
}

print_r($newArray);

Answer 3

如果我理解你的话，那就是我的榜样：

<?php
// This is your first Array
$var = array();

// And here some stdClass Objects in this Array
$var[] = (object) array( 'ID' => 113, 'title' => 'text' );
$var[] = (object) array( 'ID' => 114, 'title' => 'text text text' );
$var[] = (object) array( 'ID' => 115, 'title' => 'text text' );
$var[] = (object) array( 'ID' => 116, 'title' => 'text' );

// Now here the new Array
$new_var = array();
foreach( $var as $k => $v )
{
    $new_var[$v->ID] = (array) $v;
}

// Now you can use $new_var['113']['title'] and so on
echo $new_var['113']['title'];
?>

PHP调用树对象

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