php - Regex match string starting with dollar sign and contains ( and no spaces or hyphen
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Trying to get a regex that matches
$hey()
$hey('hi')
But not:
$hey->hi()
$hey moretext()
Needs to start with a dollar sign and have a ( and no spaces or dashes.
My idea was:
^\$.*\[^- ]$
Basically trying to find all the variable functions in my PHP code base.
Answer
Solution:
This should do the job.
\w+ will match all valid variable names, ( and ) are required. Anything (or nothing) is allowed between the ().
^\$\w+\(.*\)
Answer
Solution:
PHP has a built-in lexer that is better (more accurate) than any regexp:
$tokens = token_get_all('<?php $var; $bar("hi"); $tar->(123);');
foreach ($tokens as $index => $token)
{
$token_next = $tokens[$index + 1] ?? null;
if (is_array($token) and $token[0] === T_VARIABLE and $token_next === '(')
{
var_dump($token[1] . $token_next);
}
}
Keep in mind that you are wrong about the pattern since these lines are valid PHP code:
$var ();$var\n\n();${' aaaaaa'}\n\n();${" aaaaaa$bar->bbbbbb"}\n\n();
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