Hi In PHP, I know there is no official way to delete items once they have been put into an array. But there must be a "best-method" solution to my problem. I believe this may lie in the array_filter function. Essentially, I have a shopping cart object that stores items in a hashtable. Imagine you can only ever buy one of any item at a ...
Hello, I have a php array containing email addresses as array(email_address1 => name1, email2 => name2) format. I need to check that emails are valid and I can foreach and foreach($arr as $email => $name) { $new = array(); if(filter_var($email, FILTER_VALIDATE_EMAIL)) { $new[$email] = $name; } return $new; } Can I achie...
i have a class like this class im_a_class { static function not_empty() {...} function render() { return array_filter($array,'self::not_empty') }; } this code works in php 5.3.0 but doesn't work in version 5.2.8. i had to put it out and use it like this function not_empty() {...} class im_a_class { function render() { return...
I have a mutable array of custom objects. I want to filter that array by attribute of the object, for example myObject.attributeOne. How can I create the NSPredicate to use with [myArrayOfObjects filterUsingPredicate:<the_predicate>] ...
Dear all, I have an issue here with filter_array. below is my code: $array = array("0","0","1"); function returnzero($d){ if($d=='0'){ return $d; } } $all_zeros = array_filter($array, "returnzero"); echo count($all_zeros); I would like to filter out all values that none other than zero. Above is my code. However, th...
I've tested the following and it works on both PHP 5.2 and 5.3, however, it's not documented anywhere as far as I can see so I'm evaluating its use. I have a function in a class called isValid, this checks a hash to see if the given value is in the set of allowed values. There are some values that are valid, but deprecated; I'd like my ...
I have the following class: <?php /* * Abstract class that, when subclassed, allows an instance to be used as an array. * Interfaces `Countable` and `Iterator` are necessary for functionality such as `foreach` */ abstract class AArray implements ArrayAccess, Iterator, Countable { private $container = array(); public function ...