stripcslashes does not simply skip the C-style escape sequences \a, \b, \f, \n, \r, \t and \v, but converts them to their actual meaning.
So
<?php
stripcslashes('\n') == "\n"; //true;
$str = "we are escaping \r\n"; //we are escaping
?>
(PHP 4, PHP 5, PHP 7, PHP 8)
stripcslashes — Desmarca la cadena marcada con addcslashes()
Devuelve una cadena con las barras invertidas eliminadas
Reconoce las marcas tipo C \n, \r ...,
y la representación octal y hexadecimal.
strThe string to be unescaped.
Devuelve la cadena sin escapar.
stripcslashes does not simply skip the C-style escape sequences \a, \b, \f, \n, \r, \t and \v, but converts them to their actual meaning.
So
<?php
stripcslashes('\n') == "\n"; //true;
$str = "we are escaping \r\n"; //we are escaping
?>