我有一个包含这些值的数据数组：
Array
(
[id] => 1
[myid] => 9
[date] => 2014-01-30
[user] => 17
[reason] => some text here...
)
并且此字符串包含引用数据数组索引的数字：
$columns = '(0) as "id",(1) as "myid",(2) as "date",(3) as "user",(4) as "reason"';
是否可以将括号中的数字（包括括号）更改为数组中的适当值？
我知道如何使用，(string) preg_replace( (array) $patterns, (array) $replacements, (string) $subject)但完全不知道如何解决此问题。
理想情况下，结果字符串应如下所示：
'1' as "id",'9' as "myid",'2014-01-30' as "date",'17' as "user",'some text here...' as "reason"
该解决方案的使用preg_replace_callback和str_replace功能：
$columns = '(0) as "id",(1) as "myid",(2) as "date",(3) as "user",(4) as "reason"';
// $arr is your initial array
$result = preg_replace_callback(
"/(\(\d\)) as \"(\w+?)\",?/i",
function ($maches) use($arr){
return str_replace([$maches[1]], "'". $arr[$maches[2]]. "'", $maches[0]);
},
$columns);
print_r($result);
输出：
'1' as "id",'9' as "myid",'2014-01-30' as "date",'17' as "user",'some text here...' as "reason"
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