How to convert double backslash in string to one backslash in PHP? - php

Question

I need a to generate a string like this, Helpers\Name.
I have a $prefix that contains \\ like $prefix = "Helpers\\";
When I merge the strings like below, It returns a string with double backslashes instead of one!
$what_i_want = $prefix . 'Name'; // return Helpers\\Name
After that result, I tried to replace the double backslashes by one with str_repleca() and preg_replace()methods but it does not work!
Any solution will be appreciated.
Update:
Here is my helper function in Laravel which I want to return what I want:
public static function getModelsClassesByString()
{
$path = app_path();
$models = [];
$prefix = "App\\";
$results = scandir($path);
foreach ($results as $result) {
if ($result === "." or $result === "..") continue;
$filename = $prefix . $result;
$models[] = substr($filename, 0, -4);
}
return $models;
}
the function return like below:
["App\\Admin", "App\\User",...]
Also, I really don't understand someone who could not help but let itself to destroy the question and my needs by down votes or destructor comments.

Answer 1

Another idea is not to include in your strings the \ character and concat it later.
Eg.
$prefix = "Helpers";
$what_i_want = $prefix ."\\". 'Name';
Result would be "Helpers\Name";

Answer 2

You may try to make it simple like this, do not use double qoute.
public static function getModelsClassesByString()
{
$path = app_path();
$models = [];
$prefix = "App" . '\\';
$results = scandir($path);
foreach ($results as $result) {
if ($result === "." or $result === "..") continue;
$filename = $prefix . $result;
$models[] = substr($filename, 0, -4);
}
return $models;
}

Answer 3

Try (from this answer):
$prefix = str_replace("\\\\", "\\", $prefix);
$what_i_want = $prefix . 'Name';
The reason is because backslashes are special characters so need to be escaped.
It will only work for two backslashes though and not varying amounts of occurrences.