PHP混合HTML和代码

Question

(Preamble: Am new to PHP, coming from a C# background where I am used to very clean code. Am currently working on my own Wordpress site which has a purchased theme.)

I have seen this type of code in a WordPress theme:

<a href="<?php echo esc_url( home_url( '/' ) ); ?>"><img src="<?php echo esc_url( $logo ); ?>" alt="<?php echo esc_attr( get_bloginfo( 'name' ) ); ?>" id="logo"/></a>

I find this very hard to read compared to the refactored:

<?php
            echo '<a href="';
            echo esc_url( home_url( '/' ) ); 
            echo "><img src=";
            echo esc_url( $logo ); 
            echo " alt=";
            echo esc_attr( get_bloginfo( 'name' ) ); 
            echo '" id="logo"/></a>'
?>

But this is the easiest by far:

<?php
        get_anchor($url, $imgsource, $alt, $id);
?>

get_anchor being a custom function that echos an anchor configured according to the parameters.

But surely I am not the first to think of this. Are there any existing libs that have a set of functions that return properly formatted html like in this example? Is there something I am missing?

Answer 1

I've written a function that returns a HTML tag based on the pure PHP output:

function tag($name, $attrs, $content) {
    $res = '';
    $res .= '<' . $name;
    foreach($attrs as $key => $val)
        $res .= ' ' . $key . '="' . $val . '"';

    $res .= isset($content) ? '>' . $content . '</'.$name.'>' : ' />';

    return $res;
}

• $name is the tagname (e.g. a)
• $attrs is a key, value array with attributes (e.g. array('href','http://google.com/'))
• $content is the content / body of the tag (an other element or text)

Example basic use:

echo tag('a', array('href' => 'http://google.com/'),'Google');

Example nested use with multiple children:

echo tag('ul',array(),
        tag('li',array(),'one') . 
        tag('li',array(),'two') . 
        tag('li',array(),'three')
    );