PHP implode() Function: Syntax, Parameters, Return Value, and Examples
The article explains PHP’s implode() function, detailing its signature, parameters ($glue and $pieces), return value, and provides practical code examples demonstrating how to join array elements into a string, including handling empty arrays and output formatting.
implode() converts the values of a one‑dimensional array into a string.
Signature string implode(string $glue, array $pieces) Parameters
glue – The string to insert between array elements; defaults to an empty string.
pieces – The array whose values you want to join.
Return value
Returns a string containing the array values joined by the glue string.
Example
<?php
$array = array('lastname','email','phone');
$comma_separated = implode(",", $array);
echo $comma_separated; // lastname,email,phone
// Empty string when using an empty array
var_dump(implode('', array()));
// string(0) ""
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