Question

I've got array data which outputs as:

'TextField3283' => string 'A'
'TextField3287' => string 'B'
'TextField3288' => string 'C'
'Custom_TextField3283' => string 'customfield_10202'
'Custom_TextField3287' => string 'customfield_10216'
'Custom_TextField3288' => string 'customfield_10212'

What I need to do is shuffle the key and values to create the following output:

'customfield_10202' => 'A'
'customfield_10216' => 'B'
'customfield_10212' => 'C'

So the value of the last three entries become the keys of a new array, with the correct values. As you can see, the last three entries are the same as the first three but prefixed with Custom_

With this in mind, I've attempted to use:

$customfields = array();

foreach ($data as $key => $value) {

    if (preg_match("/_TextField/", $key)) {
        array_push($customfields, array($value => $key));
    }
}

Which outputs:

'customfield_10202' => 'Custom_TextField3283'
'customfield_10216' => 'Custom_TextField3287'
'customfield_10212' => 'Custom_TextField3288'

But now I'm not sure the best way to lookup the values as keys in the first array and return their values...

I hope this makes sense

Answer 1

你的尝试非常接近。如果您的阵列保持原样，您需要做的就是：

stop

注意我们foreach ($array as $key => $value) { if (preg_match("/_TextField/", $key)) { list($unused, $findkey) = explode("_", $key); array_push($customfields, array($value => $array[$findkey])); } }上的explode()怎么样？这是因为该值的键被设置为数组索引。

Example

PHP array manipulation, switch values with specific keys - pattern?

1 个答案: