Question

我正在做一个网页，我必须插入一个json变量（$ grav，它包含来自json的所有原始数据）换行符或3个给定情况下的制表符。之后，我强制下载数据作为xls文件。一切都在工作，除了＆＃34; preg_replace＆＃34;部分。它找到分隔符，但不是插入＆＃34; \ n＆＃34;或＆＃34; \ t＆＃34;根据下载的xls文件，它只插入一个空格（数据全部在一个单元格而不是多个列和行中（这就是为什么我需要换行符和标签符号）。

$grav='"title":[{"field1":,"field3":,{"field4"}';

        $grav = preg_replace("/\},\{/",  "},\n{",  $grav);
        $grav = preg_replace("/\[\{/",  "\n[{",   $grav);
        $grav = preg_replace("/,\"/",  ",\"\t",  $grav);



        header("Content-Description: File Transfer");
        header('Content-Type: application/vnd.ms-excel');
        header('Content-Disposition: attachment; filename="data_ '. date("Ymd") . '_' . $id . '.xls"');
        header("Content-Transfer-Encoding: binary");
        header('Expires: 0');
        header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
        header('Pragma: public');
        header("Content-Type: application/force-download");
        header("Content-Type: application/download");

        echo $grav;

你能帮忙吗？

Answer 1

你试图将json代码分成3行吗？任何我将如何使用数组解决这个问题的想法。尝试使用json转换。它可能会帮助你

<?php 
$fruit = array('a' => 'apple', 'b' => 'banana', 'c' => 'cranberry');// i used associate array which is similar to json data
reset($fruit);
while (list($key, $val) = each($fruit)) {
$grav .= $key."=>". $val."<br>";// brakes the line into 3 
}
  header("Content-Description: File Transfer");
    header('Content-Type: application/vnd.ms-excel');
    header('Content-Disposition: attachment; filename="data_ '. date("Ymd") . '_' . $id . '.xls"');
    header("Content-Transfer-Encoding: binary");
    header('Expires: 0');
    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
    header('Pragma: public');
    header("Content-Type: application/force-download");
    header("Content-Type: application/download");

echo $grav;
?>

使用preg_replace插入换行符或制表符

1 个答案: