4.3. Storing Multiple Elements per Key in an Array4.3.2. SolutionStore the multiple elements in an array: $fruits = array('red' => array('strawberry','apple'), 'yellow' => array('banana')); Or, use an object: while ($obj = mysql_fetch_object($r)) { $fruits[ ] = $obj; } 4.3.3. DiscussionIn PHP, keys are unique per array, so you can't associate more than one entry in a key without overwriting the old value. Instead, store your values in an anonymous array: $fruits['red'][ ] = 'strawberry'; $fruits['red'][ ] = 'apple'; $fruits['yellow'][ ] = 'banana'; Or, if you're processing items in a loop: while (list($color,$fruit) = mysql_fetch_array($r)) { $fruits[$color][ ] = $fruit; } To print the entries, loop through the array: foreach ($fruits as $color=>$color_fruit) { // $color_fruit is an array foreach ($color_fruit as $fruit) { print "$fruit is colored $color.<br>"; } } Or use the pc_array_to_comma_string( ) function from Recipe 4.10. foreach ($fruits as $color=>$color_fruit) { print "$color colored fruits include " . pc_array_to_comma_string($color_fruit) . "<br>"; } 4.3.4. See AlsoRecipe 4.10 for how to print arrays with commas. Copyright © 2003 O'Reilly & Associates. All rights reserved. |
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