PHP implode() Function

PHP String Function

Example

Combine array elements into a string:

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

Run Instance

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 allowed, you must ensure that separator Parameter in string .

Note:Parameters for implode() function must be specified before the separator The parameter is optional. However, for backward compatibility, it is recommended that you use two parameters.

Note:This function is binary safe.

Syntax

implode(separator,array)
Parameter Description
separator Optional. Specifies the content to be placed between array elements. The default is "" (empty string).
array Required. The array to be combined into a string.

Technical Details

Return Value: Returns a string composed of array elements.
PHP Version: 4+
Update Log: In PHP 4.3.0,separator Parameters become optional.

More Examples

Example 1

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);
?>

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PHP String Function