Req #70087 [Com]: Better string interpolation

Edit report at https://bugs.php.net/bug.php?id=70087&edit=1 ID: 70087 Comment by: chrisdmiddleton at gmail dot com Reported by: mario dot dweller at seznam dot cz Summary: Better string interpolation Status: Open Type: Feature/Change Request Package: Strings related PHP Version: 7.0.0beta1 Block user comment: N Private report: N New Comment: Never mind my previous question about function calls in variable interpolation. To answer my own question, I see that it is documented in the manual. Previous Comments: ------------------------------------------------------------------------ [2015-07-17 16:51:47] chrisdmiddleton at gmail dot com I would also really like this feature, thanks Mario for bringing it up. In Mario's proposal, we would have to have a BC break, but here's a way that we could do it without a BC break. The following currently gives a parse error: echo "{$(time())}"; (Parse error: syntax error, unexpected '(', expecting variable ...) So it could be implemented that arbitrary expressions would be allowed inside parentheses like that. On a side note, I've found some very odd behavior in PHP 5.6.10, where I can use a function call inside variable interpolation, at least in a somewhat limited way. Is this documented behavior?? <?php function foo () { echo "really"; } echo "${foo()}"; // prints "really" ------------------------------------------------------------------------ [2015-07-16 11:52:57] mario dot dweller at seznam dot cz Description: ------------ There is a support for variable interpolation in strings like $string = "$a/$b $c"; or $string = "{$a}/{$b} {$c}"; But it is not usable for functions. $string = "Length: {strlen($a)}"; I guess that's why many programmers prefer using sprintf instead because it is more readable than concatenation using dots. I personally use sprintf almost everywhere because the code looks more consistent then. Since there are many cool new features in PHP7, why not to add this basic one? I guess it would need a special syntax because of BC, or not? But there are currently two ways to achieve the same thing: $string = "Hello {$a}"; $string = "Hello ${a}"; The second one looks unnaturally, most prefer the first way. For example it could be forbidden in favor of this: $string = "Length is ${strlen(a)}"; ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=70087&edit=1