Bug #81635 [Opn->Nab]: When curly braces are escaped, the back-slash isn't removed \{

Edit report at https://bugs.php.net/bug.php?id=81635&edit=1 ID: 81635 Updated by: cmb@php.net Reported by: shealavington at gmail dot com Summary: When curly braces are escaped, the back-slash isn't removed \{ -Status: Open +Status: Not a bug Type: Bug -Package: *General Issues +Package: Scripting Engine problem Operating System: Windows 10 PHP Version: 8.0.12 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: The docs do not list \$ as escape sequence[1]. They are actually very explicit about that[2]: | Since { can not be escaped, […] What you're looking for is <https://3v4l.org/hndfP>. [1] <https://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.double> [2] <https://www.php.net/manual/en/language.types.string.php#language.types.string.parsing.complex> Previous Comments: ------------------------------------------------------------------------ [2021-11-18 11:06:06] shealavington at gmail dot com Description: ------------ When curly braces are escaped within a string "", the back-slash isn't removed \{. For example "hello\{$foo}" is outputting hello\{bar} instead of hello{bar} Test script: --------------- <?php $foo = "bar"; $test_script = "hello\{$foo}" //- Explanation output below. echo "If \ is the escape character, why are the escaped characters and the escape character both shown?<br>"; echo "Res: <b>c:\path\hello\{$foo}</b><br>"; echo "Expected: <b>c:\path\hello"."{"."$foo}</b><br>"; echo "<br>Notice how in this example, I haven't used a \ but the {} characters are gone when not escaped?<br>"; echo "Res: <b>c:\path\hello{$foo}</b><br>"; echo "<br>If I use \ n, it replaces the \, I don't see \ n like I do in the first example above.<br>"; echo "Res: <b>c:\path\hello\note\{$foo}</b><br>"; Expected result: ---------------- hello{bar} Actual result: -------------- hello\{bar} ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81635&edit=1