Re: PHP 4.0 Bug #7668: Unexpected change in behavior of { within a string

On 6 Nov 2000 ray@dasyp.com wrote: > From: ray@dasyp.com > Operating system: Win NT 4.0 SP6 > PHP version: 4.0.3pl1 > PHP Bug Type: Scripting Engine problem > Bug description: Unexpected change in behavior of { within a string > > I had a script running fine under PHP 3.x and 4.0.0, but after upgrading to the latest version > (4.04dev), I had some problems. > > Following is an example of the problem: > > <?php > $string = "Test String"; > echo "This is a {Test} {$string}"; > ?> > > The code above when executed under an older version of the 4.x or 3.x series will produce the > following output: > > This is a {Test} {Test String} > > but under 4.04dev it produces: > > This is a {Test} Test String > > note the the {} characters are missing around "Test String". This is causing a > problem in an SQL statement. I have found that escaping the first { character will solve the > problem, hence: > > <?php > $string = "Test String"; > echo "This is a {Test} \{$string}"; > ?> > > will produce: > > This is a {Test} {Test String} > > Please note that only the initial { character needs to be escaped. > > This is my first bug report to PHP and have the suspicion that this isn't actually a bug > and perhaps a mistake on my part. I know that the {} characters are used for delimiting code > blocks, but I don't know what their significance would be in a string. The fact that PHP will > expand variables within strings (like perl) adds a little to the puzzle. Since this behavior seems > new to me I thought I would send it in just in case. > See http://www.php.net/version4/incompatibilities.php, item 5. Could somebody please change this to a documentation problem, as there should probably be a link from the documentation page? -- Ignacio Vazquez-Abrams <ignacio@openservices.net>