I want replace php codes in string and running fro server
$x = 1;
$string = "OK:{first}Yes{second}No";
I want replace if($x == 1){ to {first} and } else { to {second}
After run and echo $string , I want result in html :
OK:Yes
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2 Answers
How did you come up with this approach? Why not simply:
$string = $x == 1 ? 'OK:Yes' : 'OK:No';
That would get you the string you want based on the value of $x.
Also if you literally mean that you want to do a search-n-replace on the PHP code itself (as @OllyTenerife assumes), then are you going to write it into a file to be executed later, or use eval() or something? Doesn't sound like the right track there... In which case, remodel your code.
4 Comments
Mohammad
I want replce php code to string and run it ! , like blog templates
Markus AO
If you want to search-and-replace PHP code into a string, you're going to have to use
eval() to then evaluate the code you've stored in that string. Using eval() is a very bad idea for a templating engine. You'd be better off just using e.g. {result} in your HTML, and then doing a search-replace over your HTML, where you replace {result} with the desired value. Use the code above, and then run str_replace('{result}', $string, $HTMLcode);, where $HTMLcode is your template file.Markus AO
Otherwise, if you insist on having both options in your template string, you will have to use
preg_replace() to accomplish your job -- and you will have to craft a bunch of regex patterns, assuming you have more than one token you intend to replace. In any case, trying to search-n-replace PHP code into a string for evaluation is not a good idea.Markus AO
May be a good idea to get back to the drawing board and figure out what exactly you want to do in the big picture of what you're building. If this is just a one-off case, then you don't need templating. If you need basic templating with minimal code, have a look at my answer here: stackoverflow.com/questions/29838190/…
$string = str_replace("{first}","if($x == 1)",$string);
$string = str_replace("{second}","} else {",$string);
