John Davidson

Message:

There is a string in format:

else if($rule=='somerule1')

echo '{"s":1,"n":"name surname"}';

else if($rule=='somerule2')

echo '{"s":1,"n":"another text here"}';

...

"s" can have only number, "n" any text.

In input I have $rule value, and I need to remove the else if block that corresponds to this value. I am trying this:

$str = preg_replace("/else if\(\$rule=='$rule'\)\necho '{\"s\":[0-9],\"n\":\".*\"/", "", $str); 

where $str is a string, that contains blocks I mentioned above, $rule is a string with rule I need to remove. But the function returns $str without changes.

What do I do wrong?

---

For example, script to change "s" value to 1 works nice:

$str = preg_replace("/$rule'\)\necho '{\"s\":[0-9]/", $rule."')\necho '{\"s\":1", $str);

So, probably, I am doing mistake with = symbol, or maybe with space, or with .*.

---

My Answer:
$rule = 'somerule1';
$string = "else if(\$rule=='somerule1') echo '{';";

$replacement = "else if(\$rule=='replacementrule') echo '{';";

$newString = preg_replace("/else if\(\$rule=='\w+'\)/", $replacement, $string);

echo $newString;