php 5.4 var_export的改進

用 var_export 來將數據存儲到 php 配置文件裏的時候，發現var_export轉出來的變量定義還是 array()這種形式，不能轉爲[],所以自己寫個函數來轉換一下，代碼如下：

<?php
function format_var_export($data = [])
{
    $string = "<?php\n\nreturn " . var_export($data, TRUE) . ";";
    $string = str_replace("=> \n  array (", "=> [", $string);
    $string = str_replace("),", "],", $string);
    $string = str_replace(");", "];", $string);
    $string = str_replace("array (", "[", $string);
    $string = str_replace("  ", "    ", $string);
    return $string;
}

實驗一下

config.php 代碼如下：

<?php


$data = [
    'user' => [
        'name' => 'hello',
        'uid' => 1
    ],
    'tel' => [
        'type' => 'phone',
        'number' => '123456',
    ]
];

$string = format_var_export($data);

echo $string;

function format_var_export($data = [])
{
    $string = "<?php\n\nreturn " . var_export($data, TRUE) . ";";
    $string = str_replace("=> \n  array (", "=> [", $string);
    $string = str_replace("),", "],", $string);
    $string = str_replace(");", "];", $string);
    $string = str_replace("array (", "[", $string);
    $string = str_replace("  ", "    ", $string);
    return $string;
}

執行腳本 php config.php

輸出

好了，這就是我們要的，將這個數據存儲到配置文件就行了。