Bug #12668: unexpected behavior of preg_replace

From: chuck@1111-internet.com Operating system: FreeBSD 4.0 PHP version: 4.0.6 PHP Bug Type: PCRE related Bug description: unexpected behavior of preg_replace Simple problem - the script: <?php echo preg_replace("/'/e", "\"$0\"", "'"); // that's double-quote, slash, single-quote, slash, e, double-quote // then double-quote, escaped double-quote, $0, escaped double-quote, double-quote // then double-quote, single-quote, double-quote // meaning = "replace all occurrences of single-quote with the same string matched during the search - i.e. single-quote" ?> should produce one plain single-quote, but instead it produces an escaped single-quote. No other character seems to exhibit this behavior. Configuration: './configure' '--prefix=/usr/local/php4' '--with-mysql' '--with-apxs=/usr/local/sbin/apxs' '--enable-track-vars' '--with-gd=/usr/local' '--with-zlib-dir=shared' '--with-ttf' '--with-jpeg-dir=/usr/local' '--with-png-dir=/usr/local' '--with-tiff-dir=/usr/local' '--with-mcrypt' '--with-pdflib' No other unusual configuration setups -- Edit bug report at: http://bugs.php.net/?id=12668&edit=1