PHP: join() function
Description
The join() function is used to join array elements with a string. The join() function is similar to implode() function.
Version:
(PHP 4 and above)
Syntax:
join (string_join, array_name)
Parameters:
Name | Description | Required / Optional |
Type |
---|---|---|---|
string_join | String-join is work as a connector between the array elements. The default value is a empty string (" "). | Optional | String |
array_name | The array who's elements will be joined. | Required | Array |
Return values:
A string representation of all the array elements in the same order, with the string_join string between each array element.
Value Type: String.
Pictorial Presentation
Example:
<?php
$array_name=array('1','2','3','4','....');
$join_string=join(",", $array_name);
echo $join_string;
echo '<br>';
$array_name=array('A','B','C','D','E');
$join_string=join("-", $array_name);
echo $join_string;
?>
Output:
1,2,3,4,.... A-B-C-D-E
View the example in the browser
See also
PHP: Tips of the Day
In PHP, there are two versions of logical AND and OR operators.
Operator | True if |
---|---|
$a and $b | Both $a and $b are true |
$a && $b | Both $a and $b are true |
$a or $b | Either $a or $b is true |
$a || $b | Either $a or $b is true |
Note that the && and || opererators have higher precedence than and and or. See table below:
Evaluation | Result of $e | Evaluated as |
---|---|---|
$e = false || true | True | $e = (false || true) |
$e = false or true | False | ($e = false) or true |
Because of this it's safer to use && and || instead of and and or.
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