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6181778
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2011-05-31T00:12:04.283
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2011-05-31T00:50:12.563
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Read about <code>$GLOBALS</code> variable <a href="http://php.net/manual/en/reserved.variables.globals.php" rel="nofollow">in the documentation</a>. This is probably what you need. Depending on the way you determine which variable you need, you can for example user <code>array_search()</code> to find the proper name based on the value. Caution: <code>$GLOBALS</code> is about global scope's variables. EDIT: But this would be still a guess. You may try the following method to determine the name of the passed variable with ~100% certainty: <ol> <li>Pass variable to the method with reference.</li> <li>Use <code>array_search()</code> for finding the name of the variable. If only one key matches it, you have your name. If not, go to the next step.</li> <li>Save the initial value of the variable and save the list of positions at which you have found matching elements.</li> <li>Change the variable's value into new one. Perform another search based on new value and get positions that are also in the list of positions from point no. 3.</li> <li>At this point you have probably found the name of the variable you are looking for.</li> </ol> But... Is it really needed? I suggest that you should look for simpler solution, some better encapsulation of your code. Ps. <code>array_search()</code> actually returns no more than one key (<a href="http://php.net/manual/en/function.array-search.php" rel="nofollow">see documentation</a>). You should know that and make searching for multiple results a little more sophisticated to not skip the correct one if more than one variable matches your search criteria. (EDIT2: As mario suggested, <code>array_intersect($GLOBALS, array($var))</code> will suffice)
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1. POHow do I get the name of a variable variable?
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