如何在PHP中组合数组的键和值

Say I have an array of key/value pairs in PHP:

假设我在PHP中有一个键/值对数组:

array( 'foo' => 'bar', 'baz' => 'qux' );

What's the simplest way to transform this to an array that looks like the following?

将它转换为如下所示的数组的最简单方法是什么?

array( 'foo=bar', 'baz=qux' );

i.e.

即。

array( 0 => 'foo=bar', 1 => 'baz=qux');

In perl, I'd do something like

在perl中，我会做一些类似的事情。

map { "$_=$hash{$_}" } keys %hash

Is there something like this in the panoply of array functions in PHP? Nothing I looked at seemed like a convenient solution.

在PHP的数组函数中有这样的东西吗?我看到的任何东西都不像是一个方便的解决方案。

4 个解决方案

#1

function parameterize_array($array) {
    $out = array();
    foreach($array as $key => $value)
        $out[] = "$key=$value";
    return $out;
}

#2

Another option for this problem: On PHP 5.3+ you can use array_map() with a closure (you can do this with PHP prior 5.2, but the code will get quite messy!).

这个问题的另一个选择是:在PHP 5.3+上，您可以使用array_map()和闭包(您可以在之前的5.2中使用PHP，但是代码会变得非常混乱!)

"Oh, but on array_map()you only get the value!".

“哦，但是在array_map()上，你只能得到值!”

Yeah, that's right, but we can map more than one array! :)

是的，没错，但是我们可以映射多个数组!:)

$arr = array( 'foo' => 'bar', 'baz' => 'qux' );
$result = array_map(function($k, $v){
    return "$k=$v";
}, array_keys($arr), array_values($arr));

#3

A "curious" way to do it =P

这是一种“奇怪”的方法=P

// using '::' as a temporary separator, could be anything provided
// it doesn't exist elsewhere in the array
$test = split( '::', urldecode( http_build_query( $test, '', '::' ) ) );

#4

chaos' answer is nice and straightfoward. For a more general sense though, you might have missed the array_map() function which is what you alluded to with your map { "$_=$hash{$_}" } keys %hash example.

混沌的答案很简单。但是，对于更一般的意义，您可能忽略了array_map()函数，这是您在映射{“$_=$hash{$_}”}%hash示例中提到的。

#1

function parameterize_array($array) {
    $out = array();
    foreach($array as $key => $value)
        $out[] = "$key=$value";
    return $out;
}

#2