PHP implode improvement

implode.php

<?php

// Propose:
// Add a "$wrap" or "$prefix" and "$suffix" parameters to the implode() function.
// https://secure.php.net/manual/en/function.implode.php

// So something like this:
$array = ['a', 'b', 'c'];
$output1 = '"' . implode(',', $array) . '"';

// Could be changed to something like:
$output2 = implode(',', $array, '"');

// And produce identical results:
echo $output1; // = "a,b,c"
echo $output2; // = "a,b,c"

// Thus, the third parameter for implode() would be a string used to "$wrap" both $prefix and $suffix around the resulting implode string.

// Further, providing a fouth parameter makes the third parameter only the $prefix, and the fourth parameter would be $suffix.
// This would then change this:

$output3 = '<ul><li>' . implode('</li><li>', $array) . '</li></ul>';

// To:
$output4 = implode('</li><li>', $array, '<ul><li>', '</li></ul>');

// And produce identical results:
echo $output3; // = <ul><li>a</li><li>b</li><li>c</li></ul>
echo $output4; // = <ul><li>a</li><li>b</li><li>c</li></ul>

// So the implode() would then be defined something like:
string implode ( string $glue , array $pieces, string $wrap_or_prefix = '', string $suffix = '' )
// Where $wrap will used for $suffix if $suffix is the empty string ''
    
// If $suffix is null, then $wrap will only be used as $prefix. Thus:
$output5 = implode('</li><li>', $array, '<ul><li>', null);
// Produces:
echo $output5; // = <ul><li>a</li><li>b</li><li>c

// If $prefix is null, then $suffix will only be used. Thus:
$output6 = implode('</li><li>', $array, null, '</li></ul>');
// Produces:
echo $output6; // = a</li><li>b</li><li>c</li></ul>


// If $prefix and $suffix are null, then both $prefix and $suffix are ignored, and E_NOTICE is raised
$output7 = implode('</li><li>', $array, null, null);
// Produces:
echo $output7; // E_NOTICE; = a</li><li>b</li><li>c