list

Definition and usage

list() function is used to assign values ​​to a set of variables in a single operation.

Note: This function is only used for arrays of numeric indexes, and assumes that numeric indexes start at 0.

Example

Example 1

Assign the values ​​in the array to some variables:

 <?php
$my_array = array ( "Dog" , "Cat" , "Horse" ) ;

list ( $a , $b , $c ) = $my_array ;
echo "I have several animals, a $a , a $b and a $c ." ;
?>

Try it yourself

Example 2

Use the first and third variables:

 <?php
$my_array = array ( "Dog" , "Cat" , "Horse" ) ;

list ( $a , , $c ) = $my_array ;
echo "I only use the $a and $c variables here." ;
?>

Try it yourself

grammar

 list ( var1 , var2 ... )

illustrate

list() function uses elements in the array to assign values ​​to a set of variables.

Note that similar to array() , list() is actually a language structure, not a function.