How to convert Array to string in PHP without using implode method?

You can use json_encode

<?php
$arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);

echo json_encode($arr);
?>

This will also work on multi dimensional arrays

Will result to:

{"a":1,"b":2,"c":3,"d":4,"e":5}

Doc: http://php.net/manual/en/function.json-encode.php

Another way is the classic foreach plus string concatenation

$string = '';
foreach ($arr as $value) {
    $string .= $value . ', ';
}
echo rtrim($string, ', ');

Yet another way is to use serialize() (http://php.net/manual/en/function.serialize.php), as simple as...

$string = serialize($arr);

This can handle most types and unserialize() to rebuild the original value.

$cart_remove_arr = array(0 => 1, 1=> 2, 2 => 3);
$cart_value_arr = array(0 => 5, 1=> 2, 2 => 3, 3 => 4, 4 => 6);
$arr = array_diff($cart_value_arr, $cart_remove_arr);
echo '<pre>';
print_r($arr);

$string = "";

foreach($arr as $value) {
    $string .= $value.', ';
}
echo $string;

**Output: Naveen want to remove $cart_remove_arr from $cart_value_arr
Remaining array**
Array
(
    [0] => 5
    [3] => 4
    [4] => 6
)
he want a similar out as implode()
**String** 5, 4, 6,