PHP: Replace specified tag values in PHP [duplicate]

This question already has answers here: Grabbing the href attribute of an A element (10 answers) Closed 9 years ago.

Take a look at the HTML example below:

<iframe width="AnyNumber" height="AnyNumber">

How can i replace AnyNumber开发者_运维问答 with specified number $1 and $2 for width and height? they can be swapped like:

 <iframe height="AnyNumber" width="AnyNumber">

---

It reminds me of templates.

For example you have you html files like this

<div class="nav">@navigationMenu</div>
    <img src="@imgSrc">
    <span>@title</title>
    <p>@article</p>

and then with a simple php class you replace with the desired values, for example:

$this->registry->main_layout->set('imgSrc', './img/green.jpg');  

There are many tutorials along with the source code (usually a single-simple php class) that implement this.

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$exmpl = '<iframe width="AnyNumber" height="AnyNumber">';
$exmpl = preg_replace('/(<iframe.*?width=").*?"/',  "\${1}$argv[1]\"", $exmpl);
$exmpl = preg_replace('/(<iframe.*?height=").*?"/', "\${1}$argv[2]\"", $exmpl);

---

$exmpl = 'iframe width="AnyNumber" height="AnyNumber">';

$exmpl = str_replace('width="AnyNumber"','width="'.$1.'"',$exmpl);

$exmpl = str_replace('height="AnyNumber"','width="'.$2.'"',$exmpl);