如何将 Php 变量值分配给 Javascript 变量？
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How to assign Php variable value to Javascript variable?
提问by Ravichandran Jothi
Possible Duplicate:
What's the best way to pass a PHP variable to Javascript?
I am using the following code:
我正在使用以下代码：
<script type="text/javascript">
<?php $ctnme = $_SERVER['REQUEST_URI'];
$cnme = explode("/",$ctnme);
echo $cname = $cnme[1];
?>
var spge = <?php echo $cname; ?> ;
alert(spge);
</script>
The value doesn't alert. What is the mistake?
该值不会发出警报。什么是错误？
回答by Cups
Essentially:
本质上：
<?php
//somewhere set a value
$var = "a value";
?>
<script>
// then echo it into the js/html stream
// and assign to a js variable
spge = '<?php echo $var ;?>';
// then
alert(spge);
</script>
回答by Stefan Gehrig
The most secure way (in terms of special character and data type handling) is using json_encode():
最安全的方法（就特殊字符和数据类型处理而言）是使用json_encode()：
var spge = <?php echo json_encode($cname); ?>;
回答by Frosty Z
Use json_encode()if possible (PHP 5.2+).
如果可能，请使用json_encode()(PHP 5.2+)。
See this one (maybe duplicate?): Pass a PHP string to a JavaScript variable (and escape newlines)
看到这个（可能是重复的？）：将 PHP 字符串传递给 JavaScript 变量（并转义换行符）
回答by Dunhamzzz
Put quotes around the <?php echo $cname; ?>to make sure Javascript accepts it as a string, also consider escaping.
在 周围加上引号<?php echo $cname; ?>以确保 Javascript 接受它作为字符串，也考虑转义。
回答by Sai Sherlekar
**var spge = '';**
alert(spge);
