在PHP文件中替换{{string}} [英] Replacing {{string}} within php file
问题描述
我在一个类方法中包含一个文件,并且该文件中包含html + php代码.我在该代码中返回一个字符串.我明确编写了{{newsletter}}
,然后在我的方法中执行了以下操作:
I'm including a file in one of my class methods, and in that file has html + php code. I return a string in that code. I explicitly wrote {{newsletter}}
and then in my method I did the following:
$contactStr = include 'templates/contact.php';
$contactStr = str_replace("{{newsletter}}",$newsletterStr,$contactStr);
但是,它不会替换字符串.我这样做的唯一原因是,当我尝试将变量传递给包含的文件时,它似乎无法识别它.
However, it's not replacing the string. The only reason I'm doing this is because when I try to pass the variable to the included file it doesn't seem to recognize it.
$newsletterStr = 'some value';
$contactStr = include 'templates/contact.php';
那么,如何实现字符串替换方法?
So, how do I implement the string replacement method?
推荐答案
您可以将PHP用作模板引擎.不需要{{newsletter}}
构造.
You can use PHP as template engine. No need for {{newsletter}}
constructs.
假设您在模板文件中输出变量$newsletter
.
Say you output a variable $newsletter
in your template file.
// templates/contact.php
<?php echo $newsletter; ?>
要替换变量,请执行以下操作:
To replace the variables do the following:
$newsletter = 'Your content to replace';
ob_start();
include('templates/contact.php');
$contactStr = ob_get_clean();
echo $contactStr;
// $newsletter should be replaces by `Your content to replace`
通过这种方式,您可以构建自己的模板引擎.
In this way you can build your own template engine.
class Template
{
protected $_file;
protected $_data = array();
public function __construct($file = null)
{
$this->_file = $file;
}
public function set($key, $value)
{
$this->_data[$key] = $value;
return $this;
}
public function render()
{
extract($this->_data);
ob_start();
include($this->_file);
return ob_get_clean();
}
}
// use it
$template = new Template('templates/contact.php');
$template->set('newsletter', 'Your content to replace');
echo $template->render();
关于它的最好的事情:您可以立即在模板中使用条件语句和循环(完整的PHP).
The best thing about it: You can use conditional statements and loops (full PHP) in your template right away.
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