在PHP中将数组转换为字符串 [英] convert array into string in PHP
问题描述
我有一个类似PHP的数组:
i have an array like in PHP:
$a = array('110','111','121');
我想将其转换为:
$b = " '110' , '111' , '121' ";
PHP中有没有做过的功能?我知道这可以通过在数组上循环并在$ b中放入值来完成,但是我想要更少的代码解决方案.
is there any function in PHP that does it? i know it could be done with a loop on array and put value in $b, but i want a less more code solution.
谢谢.
推荐答案
您确实需要所有这些空格和引号吗?您仍然可以使用implode
,尽管array_reduce
可能更好
You do need all those spaces and quotes? You can still use implode
, although array_reduce
might be nicer
$a = array(1, 2, 3, 4);
$x = "'".implode("' , '", $a)."'";
array_reduce
:
$x = array_reduce($a, function($b, $c){return ($b===null?'':$b.' , ')."'".$c."'";});
array_reduce
的优点是,对于空数组(而不是''
),您将获得NULL.请注意,您不能在5.3之前的php版本中使用此内联函数构造.您需要将回调函数设为单独的函数,并将其名称作为字符串传递给array_reduce.
Advantage of array_reduce
, is that you will get NULL for an empty array, instead of ''
. Note that you cannot use this inline function construct in php versions prior to 5.3. You'll need to make the callback a separate function and pass its name as a string to array_reduce.
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