The ‘=>’ symbol is used to assign key value pairs in an array. The value of left side is called key and the value of right side is called value of key. It is mostly used in associative array.
Syntax:
key => value
Example 1: PHP program to create associative array using ‘=>’ symbol.
<?php // PHP program to use '=>' symbol $subject = array ( "Maths" => 95,
"Physics" => 90,
"Chemistry" => 96,
"English" => 93,
"Computer" => 98
);
// Accessing the array elements echo "Marks for students:\n" ;
echo "Maths:" . $subject [ "Maths" ], "\n" ;
echo "Physics:" . $subject [ "Physics" ], "\n" ;
echo "Chemistry:" . $subject [ "Chemistry" ], "\n" ;
echo "English:" . $subject [ "English" ], "\n" ;
echo "Computer:" . $subject [ "Computer" ], "\n" ;
?> |
Output:
Marks for students: Maths:95 Physics:90 Chemistry:96 English:93 Computer:98
Example 2: PHP program to create numeric indexed array using ‘=>’ symbols.
<?php // PHP program to create numeric // indexed array $arr = array ( "0" => 7,
"1" => 10,
"2" => 8,
"3" => 5
);
// Display array elements foreach ( $arr as $key => $value ) {
echo $key . " => " . $value . "\n" ;
} ?> |
Output:
0 => 7 1 => 10 2 => 8 3 => 5
Example 3: PHP program to assign numeric index without using ‘=>’ symbol.
<?php // PHP program to create indexed array // without using '=>' symbols $name = array ( "Zack" , "Anthony" ,
"Ram" , "Salim" , "Raghav" );
// Display array elements foreach ( $name as $key => $value ) {
echo $key . " => " . $value . "\n" ;
} ?> |
Output:
0 => Zack 1 => Anthony 2 => Ram 3 => Salim 4 => Raghav