删除var_export（）php的格式 [英] Remove formatting of var_export() php

问题描述

我使用以下命令将数据数组打印到保存为.php的文件中，以便以后使用include来获取数组。

I am using the following command to print an array of data to a file saved as .php so i can use include to grab the array later.

$toFile = '$Data = '. var_export($DataArray,true).'; ';
file_put_contents( $filename.'.php', "<?php ".$toFile." ?>");

它被打印到格式化的文件中，以便读取，但最终占用很多由于空格和换行符等，磁盘上的空间更多。有没有简单的方法来删除格式，所以占用更少的空间。我想使用str_replace这将适用于新的行，但由于数据可能会有空格的空间不能。

It is printed to the file formatted to make it easy to read but it ends up taking up a lot more space on the disk due to spaces and newline and such. Is there an easy way to remove the formatting so it take up less space. I thought of using str_replace which would work for new lines but not spaces due to the data might have spacing in it.

<?php $Data = array (
  'Info' => 
  array (
    'value1' => 'text here',
    'value2' => 'text here',
    'value3' => '$2,500 to $9,999',
  ), ....

就像这样

<?php $Data = array('Info'=>array('value1'=>'text here','value2'=>'text here','value3'=>'$2,500 to $9,999'),...

谢谢

编辑：有没有一个preg_replace模式我可以用来删除不需要的空格只有引号外？

Is there a preg_replace pattern i can use to remove unwanted spaces ONLY outside of quotes?

推荐答案

所以我只是写了一个小函数返回缩小的PHP输出，并在我的p retty过于简化的测试用例，它节省了大约50％的空间 - 趋势较大的数组应该是一个显着更高的百分比

So I just wrote a little function that returns minified PHP-output and in my pretty oversimplified test case it saved about 50% space - tendency for larger arrays should be a significantly higher percentage

<?php
function min_var_export($input) {
    if(is_array($input)) {
        $buffer = [];
        foreach($input as $key => $value)
            $buffer[] = var_export($key, true)."=>".min_var_export($value);
        return "[".implode(",",$buffer)."]";
    } else
        return var_export($input, true);
}



$testdata=["test","value","sub"=>["another","array" => ["meep"]]];
$d1 = var_export($testdata, true);
$d2 = min_var_export($testdata);
echo "$d2\n===\n$d1\n\n";
printf("length old: %d\nlength new: %d\npercent saved: %5.2f\n", strlen($d1),strlen($d2), (1-(strlen($d2)/strlen($d1)))*100);

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