implode

Definition and usage

implode() function returns a string composed of array elements.

Note: implode() function accepts two parameter orders. However, due to historical reasons, explode() is not possible. You must ensure that the separator parameter is before the string parameter.

Note: The separator parameter of implode() function is optional. However, for backward compatibility, it is recommended that you use two parameters.

Note: This function is binary safe.

Example

Example 1

Combine array elements into strings:

 <?php
$arr = array ( 'Hello' , 'World!' , 'I' , 'love' , 'Shanghai!' ) ;
echo implode ( " " , $arr ) ;
?>

Try it yourself

Example 2

Separate array elements with different characters:

 <?php
$arr = array ( 'Hello' , 'World!' , 'I' , 'love' , 'Shanghai!' ) ;
echo implode ( " " , $arr ) . "<br>" ;
echo implode ( "+" , $arr ) . "<br>" ;
echo implode ( "-" , $arr ) . "<br>" ;
echo implode ( "X" , $arr ) ;
?>

Try it yourself

grammar

 implode ( separator , array )