php sort array by key



a nice way to do sorting of a key on a multidimensional array without having to know what keys you have in the array first: <?php $people = array( array("name"=>"bob","age"=>,"colour"=>"red"), array("name"=>"greg","age"=>,"colour"=>"blue"), array("name"=>"andy","age"=>,"colour"=>"purple")); var_dump($people);

php sort array by key

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php sort array by key

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some sort based on the array keys, whereas others by the values: $array['key'] = 'value';; whether or not the correlation between the keys and values are tained after the sort, which may mean the keys are reset numerically (,, ) the order of the sort: alphabetical, low to high (ascending), high to low (descending),  example. sort an associative array in ascending order, according to the key: <?php $age=array("peter"=>"","ben"=>"","joe"=>""); ksort($age); ?> run example » 

php sort array by key

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in this chapter, we will go through the following php array sort functions: sort() sort arrays in ascending order; rsort() sort arrays in descending order; asort() sort associative arrays in ascending order, according to the value; ksort() sort associative arrays in ascending order, according to the key; arsort() sort associative  you are right, the function you're looking for is array_multisort() . here's an example taken straight from the manual and adapted to your case: $price = array(); foreach ($inventory as $key => $row) { $price[$key] = $row['price']; } array_multisort($price, sort_desc, $inventory);.

php sort array by key

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php sort array by key

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one of php's most powerful data types is the array. it can hold numbers, it can hold letters, it can be sorted, sliced and chunked. speaking of sorting, when sorting an array the straight forward sorting functions are only for sorting by the keys or by the values. what about. sorting arrays using php. sort an associative array on any field or php provides a range of functions for sorting data based on either the key or value of an associative array. where it gets complicated is when you need to sort an array of associative arrays by one or more conditions. this is a very common task for php 

php sort array by key

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imagine you had an array like the following: original array $user = array( 'age' => , '' => 'johndoe', 'last_login' => '', 'name' => 'john doe' );. and you wanted to sort its keys based on a custom sort order supplied in another array, for example: sort order we want $order  <?php. util function to be used by sortarraybykey function. function _arraysorterbykey($key, $array, $otherarray) {. $a = $array[$key];. $b = $otherarray[$key];. if ($a == $b). return ;. return ($a < $b) ? : ;. } helper to sort an array by key using the native php function usort. function sortarraybykey($key, $array) {.

php sort array by key

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i've got a little problem getting an array sorted, and i'm not sure what the best method is. basically i've got an array with a bunch of keys like: code: array (size=) => object(stdclass)[] public 'name' => string 'imdg' (length=) public 'title' => string 'imdg' (length=) public 'group' => string 'group' 

php sort array by key

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