Answers for "php subarray"

PHP
9

php sub list

function sortByAge($a, $b) {
    return $a['age'] > $b['age'];
}
$people=[
    ["age"=>54,"first_name"=>"Bob","last_name"=>"Dillion"],
    ["age"=>22,"first_name"=>"Sarah","last_name"=>"Harvard"],
    ["age"=>31,"first_name"=>"Chuck","last_name"=>"Bartowski"]
];

usort($people, 'sortByAge'); //$people is now sorted by age (ascending)
Posted by: Guest on August-06-2019
4

limit offset array php

array_slice($array, 0, 50); // same as offset 0 limit 50 in sql
Posted by: Guest on September-02-2020
2

php sub list

array_slice() function is used to get selected part of an array.
Syntax:
array_slice(array, start, length, preserve)
*preserve = false (default)
If we put preserve=true then the key of value are same as original array.

Example (without preserve):
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2));
?>

Output:
Array ( [0] => green [1] => blue )
  
Example (with preserve):
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2,true));
?>

Output:
Array ( [1] => green [2] => blue )
Posted by: Guest on June-20-2020

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