如何将更新后的数组写入PHP文件

Question

I'm building something in PHP which reads from a PHP file, which looks like this:

<?php

return [
'name' => 'John Smith'
];

In my code, I'm getting the contents of the file and I'm reading it. But here's my problem. When I want to add an item to that array, I can but I'm not sure how to save it back into that array file.

I've tried these ways of doing it ($array being the updated array)

file_put_contents('file.php', var_export($array, true));

file_put_contents('file.php', print_r($array, true));

Answer 1

使用var_export()将数组放回文件中，如下所示：

file_put_contents('file.php', '<?php return ' . var_export($array, true) . ';');

Answer 2

As I see @misorude already suggested you need parameter 2 of var_export to be set to true as below

$ids = ['t1'=>10, 't2'=> 12, 't3' => 5];

$str = '<?php ' . PHP_EOL
        . 'return '
        . var_export($ids, 1) . ';' ;

echo $str;

RESULT:

<?php 
return array (
  't1' => 10,
  't2' => 12,
  't3' => 5,
);

So just write $str to a file and you are done