Re: making changes on arrays

From: Date: Fri, 30 Apr 2004 05:08:37 +0000
Subject: Re: making changes on arrays
References: 1  Groups: php.general 
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* Thus wrote Katie Marquez (katie_marquez2004@yahoo.com): > I want to have an array, perform an action on the > values in the array, and have those actions > permanently affect the values in the array. Here's > something I've written to test it out how I thought it > could be done: > > <?php > $array = ('zero\0', 'one\1', 'two\2', 'three\3'); > // look at array before changes > print_r($array); > // maybe use foreach or array_walk next? > foreach ($array as $value) > { > stripslashes($value); First: Most php functions always return a modified version of the variable instead of modifying them directly. So in order to actually keep the changes: $value = stripslashes($value); Second: If you are using php 5 you can do something like, note the way $value is referenced with &: foreach($array as &$value) { $value = stripslashes($value); } php 4's foreach always works on a copy so you have to access the array directly: foreach($array as $index => $value) { $array[$index] = $value; } Curt -- "I used to think I was indecisive, but now I'm not so sure."

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