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Accessing Class Arrays Dynamically


geomagnet
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Hi,I want to access a class array that is called by another function. Here what I'm doing.

class myClass{var $myArray = Array(0=>Array("hello", "world",0),1=>Array("foo", "bar",1),2=>Array("voo", "doo",2));var $myVar = "HELLO WORLD";}function myFunc(){$theClass = new myClass();$i = 1;$test_0 = "myArray[1][0]";$test_1 = "myVar";$test_2 = "myArray[1][$i]";echo $theClass->myArray[0][0];echo $theClass->myArray[0][$i];echo $theClass->myVar;echo $theClass->$test_1;echo $theClass->$test_0;echo $theClass->$test_2;}myFunc();

Outputs:helloworldHELLO WORLDHELLO WORLDnothingnothingIs there a way to make this work so that class members can be accessed dynamically?ThanksJames

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There might be a way to make it work with variable variables, but I don't know it. I figure there's bound to be a different way of accomplishing your goal, but since I don't know what your goal is exactly, I can't guess at that either.But if you keep going in this direction, then the following works. It's ugly, but it works.

$s = '$theClass->' . "$test_2";$s = eval ("return $s;");echo $s;

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There might be a way to make it work with variable variables, but I don't know it. I figure there's bound to be a different way of accomplishing your goal, but since I don't know what your goal is exactly, I can't guess at that either.But if you keep going in this direction, then the following works. It's ugly, but it works.
$s = '$theClass->' . "$test_2";$s = eval ("return $s;");echo $s;

That might work. I've written a simple parsing script that allows me to parse HTML documents with regex. The identifiers are theclass members surrounded with {} brackets. Works really well for variables, but not arrays.
$content = file_get_contents($file);preg_match_all("/\{(\w+)\}/",  $content, $reg);//preg_match_all("/\{((\w+)(\[[0-9]\])*)\}/",  $content, $reg); // finds square brackets, but fails to process.$arr_match = array();$pattern = array();		foreach($reg[1] as $arr)		{						array_push($arr_match, $var->$arr);			array_push($pattern, "/\{".$arr."\}/");		}$content = preg_replace($pattern, $arr_match , $content);	$content = str_replace("\r","", $content);$content = str_replace("\n","",$content);return addslashes($content);}

So passing the function a class will sort out and replace any pertain values in html...parseTemplate( "../status_".$status[1].".html", $icons); // status[1] is the HTML template to be used based on the users progression.of course the $icons class has all the different paths and lables (some) in the form of an array.

<div id="status_container_{task_id}"><table class="control_div_150" style="right:-5px">	 <tr>		 <td class="taskHead"><div style="float:right">			<img src="../images/Play1Hot.png" id="hide_status_container_{task_id}"></div>				 Task Status				</td>		   </tr>  <tr>   <td><img id="icon_15_{task_id}_4" src="{icon_path}{image_15}" /> {text_15}</td>   </tr>    	<tr>   <td><img id="icon_16_{task_id}_4" src="{icon_path}{image_16}"/> {text_16}</td>   </tr>    	<tr>   <td><img id="icon_17_{task_id}_4" src="{icon_path}{image_13}" /> {text_17}</td>   </tr>    	<tr>	  <td><img id="icon_5_{task_id}_4" src="{icon_path}{image_5}" /> {text_5}</td>	</tr>	</table>	</div>

Every {string} is found with regex and replaced with the corresponding class member's value.{task_id} finds and replaces $icons->task_id in the appropriate place. {image_5} and {text_5} is mycurrent work around, but would rather it work like {image[5]} which translates to $icons->image[5]As you have previously seen in my first example
$a = "image[5]"
(string representation of an array element)
does not work
as
$icons->$a.
however,
$a = "task_id"
(string representation of a variable name) will work as
$icons->$a
and return the value of
$icons->task_id
.I did try the eval but not the same way.
eval("$icons->$a")
does not solve the problem.I'll try out your suggestion and let you know what happens.

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