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Definition and Usage

(PHP Version | 4+)

The join() function joins array elements into a string using a custom delimiter.

The join() function is an alias of the implode() function. It works identically to the implode() function.

This function returns a single string by joining each element of a given array with a specified delimiter.

Basic Example

$colors = [ 'red' , 'green' , 'blue' ]; $comma_separated = join ( ', ' , $colors ); // Join with a ', ' delimiter

echo $comma_separated ; // Output: 'red, green, blue'

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Syntax

join ( string $separator , array $array ) : string

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Parameters

# $separator

Optional.…