I'm wanting to use http_build_query to change an array to html tag properties. Problem is, it's changing my single-quoted values into %27. So if I have

http_build_query( ar开发者_Go百科ray("type"=>"'hidden'", ... ), '', ' ' );

I get

<input type=%27hidden%27 ...>

How can I get around this?

---

you could add urldecode() in front of the http_build_query

like:

<?php
     urldecode(http_build_query( array("type"=>"'hidden'", ... ), '', ' ' ));
?>

---

http_build_query() was designed to turn an array of parameters into a URL. Not to build an HTML tag. You can do a few things:

1. Add it all manually

   <input type="<?php echo htmlspecialchars($array['type']); ?>" ...
   

2. Build a helper function

   function buildArgs($array) {
       $ret = '';
       foreach ($array as $key => $value) {
           $ret .= ' ' . htmlspecialchars($key, ENT_QUOTES) . '="' . htmlspecialchars($value) . '"';
       }
       return trim($ret);
   }
   
   <input <?php echo buildArgs(array('type'=>'hidden', 'name'=>'foo')); ?>>
   

Would yield you:

    <input type="hidden" name="foo" >

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I guess you could get around this doing a rawurldecode() on the result, but this really isn't what http_build_query was intended for. And won't it put a & between the name/value pairs anyway, making the output unusable as a input element?

You could use one of the XML classes to do this but I'm not sure it's worth the effort. Where are you using this?

---

No quotes are required in your array with this function:

A one-liner for creating string of HTML attributes (with quotes) from a simple array:

$attrString = str_replace("+", " ", str_replace("&", "\" ", str_replace("=", "=\"", http_build_query($attrArray)))) . "\"";

Example:

$attrArray = array("id"    => "email", 
                   "name"  => "email",
                   "type"  => "email",
                   "class" => "active large");

echo str_replace("+", " ", str_replace("&", "\" ", str_replace("=", "=\"", http_build_query($attrArray)))) . "\"";

// Output:
// id="email" name="email" type="email" class="active large"

---

Recursive function to make hidden INPUTs:

$buildInputs = function($params, $prefix = '') use (&$buildInputs) {
    foreach ($params as $k => $v) {
        if (is_array($v)) {
            $buildInputs($v, $k);
        } else {
            if ($prefix) {
                $k = $prefix.'['.$k.']';
            }
            echo '<input type="hidden" name="'.$k.'" value="'.htmlspecialchars($v).'">';
        }
    }
};
$buildInputs($postdata);