How to print an array in PHP? 1) print_r() function: 2) var_dump() function: 3) json_encode() function: 4) foreach() loop: Introduction An array is one kind of data structure, which can store multiple items of
PHP Sort Array Example PHP Parse XML Example Printing an Array in PHP To print or echo an array in PHP, you can use the print_r($variable, $return) or var_dump($variable1, $variable2, ...) functions. The print_r() function prints information about the passed variable in human...
When its size is 0, then the array is considered empty. Otherwise, it’s not empty.Here is an example of using the sizeof() function:<?php // Declare an empty array $empty_array = []; // Use array index to check // array is empty or not if (sizeof($empty_array) == 0) ...
Usevar_dump()Function to Echo or Print an Array in PHP Thevar_dump()function is used to print the details of any variable or expression. It prints the array with its index value, the data type of each element, and length of each element. It provides the structured information of the ...
Note: The abovearray_reverse()function doesn’t modifies the original array instead of it creates a new one with modified values. Additional resources You can also checkout the following tutorials for more knowledge: How to reset an array index in PHP ...
In this article, we'll look at how we can convert the following to an array in PHP: Scalar types (i.e. boolean, integer, float and string) null
In the second block of code, we use an if statement with the isset function to determine if the user has selected any options out of the checkboxes. This checks all of the checkboxes to see if any selections have been made. If no options are selected, the array of checkboxes is not...
In this post, I will share a short and simple code on how to print and write array values to files in PHP. If you have a task or problem that needs to write the array value to a file then this is for you. In this example, I'm using file_put_contents() to put the value to...
Clearing the array To clear an array in PHP, we need to reintialize the variable with an empty array. Here is an example, that removes the all values from a $users array: $users = array("john", "nancy", "salsa"); $users = array(); #clears all elements echo $users;Similar...
An array inPHPcomputer programming contains a group of similar objects that are the same type and size. The array can contain integers, characters, or anything else with a defined data type. Theprint_rPHP function is used to return an array in a human readable form. It is written as: pr...