-3 
$test = array (
    "test1"  => array("a" => "1", "b" => "2", "c" => "3")
);

我有一个像上面这样的数组。我想在循环中推送它的值。怎么可能？你能告诉我吗？

4

5 回答 5

0

您没有指定要将值推送到哪个位置。

// array to push content
$newArray = array();

// loop through first dimensional of your array
foreach ($test as $key => $hash) {
    // your hash is also an array, so again a loop through it
    foreach ($hash as $innerkey => $innerhash) {
        array_push($newArray, $innerhash);
    }
}

该数组将仅包含“1”、“2”、“3”。如果您想要不同的输出，请回复您想要的输出。

于 2013-07-28T12:37:14.603 回答
0

您可以使用array_push()函数将元素推送到数组中。array_push()将数组视为堆栈，并将传递的变量压入数组的末尾。数组的长度会随着推送的变量数量而增加。

$test = array (
    "test1"  => array("a" => "1", "b" => "2", "c" => "3")
);

$test[] = "YOUR ELEMENT";

or

array_push($test, 'YOUR DATA', 'ANOTHER DATA');


/* If you use array_push() to add one element to the array it's better to use
$array[] = because in that way there is no overhead of calling a function. 

array_push() will raise a warning if the first argument is not an array. 
This differs from the $var[] behaviour where a new array is created. */

函数参考： http: //php.net/manual/en/function.array-push.php

于 2013-07-28T14:00:31.687 回答
-1

只需使用 foreach！

foreach($test['test1'] as $key => $value){
    echo "$key = $value";
}
于 2013-07-28T12:25:18.017 回答
-1

如果您必须推送新值，您可以这样做：

$test['test1']['newkey1'] = 'newvalue1';
$test['test1']['newkey2'] = 'newvalue2';
$test['test1']['d'] = '4';

或者

$test['test2'] = array(...);
于 2013-07-28T12:28:55.923 回答
-1

你可以使用foreach。

foreach ($test as $key => $value) // Loop 1 times
{
    // $key equals to "test1"
    // $value equals to the corespondig inner array

    foreach ($value as $subkey => $subvalue) // Loop 3 times
    {
        // first time $subkey equals to "a"
        // first time $subvalue equals to "1"
        // .. and so on
    }
}

如果您希望第一个子数组只是一个作为您的示例，您可以跳过第一个循环：

foreach ($test["test1"] as $subkey => $subvalue) // Loop 3 times
{
    // first time $subkey equals to "a"
    // first time $subvalue equals to "1"
    // .. and so on
}

编辑：如果你想在里面推送数据，你不能使用局部变量作为 $key 和 $value。您可以使用 $key 来引用原始数组变量。例如：

foreach ($test["test1"] as $subkey => $subvalue) // Loop 3 times
{
    // changing current value
    $test["test1"][$subkey] = "new value";

    // pushing new member
    $test["test1"][] = "some value"
}
于 2013-07-28T12:30:16.380 回答