How to find the location of a function definition in PHP?

Question

PHP

Conditions:
1) remote host with ssh access;
2) a lot of files, downloading them is not an option.
get_defined_functions () says that the function is defined, the interpreter does not swear at its call.
How to find where a function is defined?
Tried the following:

grep --include="*.php" -r -l "function foo_bar(" ./

I thought that in the regex, the opening bracket would be a service character, but everything is ok. I created a file with a function definition and only it was found after the command worked.

Answer 1

<?php
function test() {
}

$ref = new ReflectionFunction('test');
echo $ref->getFileName().':'.$ref->getStartLine().PHP_EOL;

Answer 2

I thought that in the regex, the opening bracket would be a service character

So you didn't ask for a regular expression search. Flags -P or -G

grep -riP 'function\s+foo_bar\s*\('  --include="*.php" ./

Answer 3

Open project in IDE and middle click.