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POhow to pass by reference a class var to a global var in PHP?
 

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  1. POhow to pass by reference a class var to a global var in PHP?
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    <p>please tell me theres a way around this...</p> <pre><code>$my_var = 'hello'; class Test{ private $my_var; private $my_internal_var = 'if you see this it works!'; function __construct(){ global $my_var; $this-&gt;my_var = &amp;$my_var; } function get_my_var(){ return $this-&gt;my_var; } function set_my_var($value){ $this-&gt;my_var = $value; } function set_my_var_to_internal_reference(){ //this line should make $my_var in root, $my_var in this object, and $my_var in //all external functions point to $my_internal_var. $this-&gt;my_var = &amp;$this-&gt;my_internal_var; } } function get_my_var(){ global $my_var; return $my_var; } function set_my_var($value){ global $my_var; $my_var = $value; } $my_obj = new Test(); echo '&lt;h2&gt;set default starting value&lt;/h2&gt;'; echo 'obj : '.$my_obj-&gt;get_my_var().'&lt;br&gt;'; //echoes 'hello' - this is ok echo 'func: '.get_my_var().'&lt;br&gt;'; //echoes 'hello' - this is ok echo 'root: '.$my_var.'&lt;br&gt;'; //echoes 'hello' - this is ok set_my_var('hello world!'); echo '&lt;h2&gt;set to value by function&lt;/h2&gt;'; echo 'obj : '.$my_obj-&gt;get_my_var().'&lt;br&gt;'; //echoes 'hello world!' - this is ok echo 'func: '.get_my_var().'&lt;br&gt;'; //echoes 'hello world!' - this is ok echo 'root: '.$my_var.'&lt;br&gt;'; //echoes 'hello world!' - this is ok $my_obj-&gt;set_my_var('hello world again!'); echo '&lt;h2&gt;set to value by object method&lt;/h2&gt;'; echo 'obj : '.$my_obj-&gt;get_my_var().'&lt;br&gt;'; //echoes 'hello world again!' - this is ok echo 'func: '.get_my_var().'&lt;br&gt;'; //echoes 'hello world again!' - this is ok echo 'root: '.$my_var.'&lt;br&gt;'; //echoes 'hello world again!' - this is ok $my_obj-&gt;set_my_var_to_internal_reference(); echo '&lt;h2&gt;set to object internal reference&lt;/h2&gt;'; echo 'obj : '.$my_obj-&gt;get_my_var().'&lt;br&gt;'; //echoes ' ' - this is NOT ok. should be 'if you see this it works!' echo 'func: '.get_my_var().'&lt;br&gt;'; //echoes 'hello world again!' - this is NOT ok. should be 'if you see this it works!' echo 'root: '.$my_var.'&lt;br&gt;'; //echoes 'hello world again!' - this is NOT ok. should be 'if you see this it works!' </code></pre> <p>Thanks!!</p>
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    1. COthanks erenon,the thing is I already tried the registry pattern, singletons,etc and this is what has given me most successful results. What I need is a way to make a change or read a var that is available everywhere and this follow through to a var inside an object. So my idea was to make the "everywhere" var be a reference to the object's internal var. But this is not happening. I know the references I have setup are working correctly because it works in almost every case, except when I try to make a reference var=to another reference. $everywhere_var -references-> $obj_var1 -refs-> $obj_var2
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