Convert String to Map in PHP

Let’s say I would like to have a PHP line:

image( "src => images/logo.png", "class => right", "alt => Company Logo" );

to generate a full blown HTML <img> tag:

<img src="http://www.dotkam.com/images/company-logo.png" class="right" alt="Company Logo">

For this I would need to translate these three function parameters:

"src => images/logo.png", "class => right", "alt => Company Logo"

into a MAP ( yes, PHP calls it an array, but it is in fact a MAP ):

imageTag (
    'src' => 'images/logo.png'
    'class' => 'right'
    'alt' => 'Company Logo'
)

Here is how it is done:

function image( ) {
 
    $validAttributes = array( 'src', 'class', 'alt' );
 
    foreach ( func_get_args() as $attr ) {
    	$attrMap = explode( ' => ', $attr ); 
    	if ( in_array( $attrMap[0], $validAttributes ) ) {
    		$imageAttrMap[ $attrMap[0] ] = $attrMap[1];
    	}
    	else {
    	    die( 'Configuration Problem: ['.$attrMap[0].'] is not a valid &lt;img&gt; attribute.' );
    	}
    }
 
    // .... validate 'src' is there, append imgTag string with all the attrs, echo it...
}