The array() function is an inbuilt function in PHP which is used to create an array. There are three types of array in PHP:
- Indexed array: The array which contains numeric index.
Syntax:
array( val1, val2, val3, ... )
- Associative array: The array which contains name as keys.
Syntax:
array( key=>val, key=>val, key=>value, ... )
- Multidimensional array: The array which contains one or more arrays.
Syntax:
array( array( val11, val12, ...)
array( val21, val22, ...)
... )
Parameters: This function accepts atmost two parameters as mentioned above and described below:
- val: This parameter is used to hold the value of array.
- key: This parameter is used to hold the key value:
Return Value: This function returns an array of parameters.
Below programs illustrates the array() function in PHP:
Program 1: This example illustrate the Indexed array.
php
<?php
// Create an array
$sub = array("DBMS", "Algorithm", "C++", "JAVA");
// Find length of array
$len = count( $sub );
// Loop to print array elements
for( $i = 0; $i < $len; $i++) {
echo $sub[$i] . "\n";
}
?>
Output:
DBMS
Algorithm
C++
JAVA
Program 2: This example illustrate the Associative array.
php
<?php
// Declare an associative array
$detail = array( "Name"=>"GeeksforGeeks",
"Address"=>"Noida",
"Type"=>"Educational site");
// Display the output
var_dump ($detail);
?>
Output:
array(3) {
["Name"]=>
string(13) "GeeksforGeeks"
["Address"]=>
string(5) "Noida"
["Type"]=>
string(16) "Educational site"
}
Program 3: This example illustrate the Multidimensional array.
php
<?php
// Declare 2D array
$detail = array(array(1, 2, 3, 4),
array(5, 6, 7, 8));
// Display the output
var_dump ($detail);
?>
Output:
array(2) {
[0]=>
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
[3]=>
int(4)
}
[1]=>
array(4) {
[0]=>
int(5)
[1]=>
int(6)
[2]=>
int(7)
[3]=>
int(8)
}
}