如何使用 PHP 将 key:value 对从 SQL 分配给 JavaScript 对象？

Question

我在 SQL 数据库中有以下数据

cname, ccode, colour
Great Britain, GB, 1
Italy, IT, 1
France, FR, 1
Spain, ES, 1

如何创建如下所示的 JavaScript 对象？

var countries = {"GB":1, "IT":1, "FR":1, "ES":1}

到目前为止，我有以下代码；

PHP

$query2 = "SELECT ccode,colour FROM country_data WHERE 1";
$result2 = mysql_query($query2);
if (!$result2) {
  die('Invalid query: ' . mysql_error());
}

$rows2 = array();
  while($r2 = mysql_fetch_assoc($result2)) {
     $rows2[] = $r2;
}

JS

var colours = '<?php print json_encode($rows2); ?>';

哪个returns:

[{"ccode":"GB","colour":"1"},{"ccode":"IT","colour":"1"},{"ccode":"FR","colour":"1"},{"ccode":"ES","colour":"1"}]

Answer 1

更改此代码

while($r2 = mysql_fetch_assoc($result2)) {
     $rows2[] = $r2;
}

给这个：

while($r2 = mysql_fetch_assoc($result2)) {
     $rows2[$r2['ccode']] = $r2['colour'];
}

Answer 2

更改 php 其他答案中的代码，它应该像

$rows2 = array();
while($r2 = mysql_fetch_assoc($result2)) {
     $rows2[$r2['ccode']] = $r2['colour'];
}

如果它不起作用，那么试试这个：

$rows2 = array();
while($r2 = mysql_fetch_assoc($result2)) {
     $rows2["'".$r2['ccode']."'"] = $r2['colour'];
}

如果还是不行，试试这个：

$rows2 = array();
while($r2 = mysql_fetch_assoc($result2)) {
     $rows2[{$r2['ccode']}] = $r2['colour'];
}

如何使用 PHP 将 key:value 对从 SQL 分配给 JavaScript 对象？

How to assign key:value pairs from SQL to JavaScript Object using PHP?

javascript

php

sql

javascript-objects