Eclipse PDT - Semantic Analysis

Question

I've got some problems with PHP Semantic Analysis in Eclipse PDT. I'm getting "undefined variable" warning in cases like this:

a.php:

<?php
$a = "var";
?>

b.php:

<?php
/* @var $a String */
/* @var $var String */
include a.php;
echo $a;              // Eclipse says $a is undefined

$arr = ["var" => "val"];
extract($arr);
echo $var;            // Eclipse says $var is undefined
?>

I've tried to notify Eclipse about those variables by PhpDoc syntax but it ignores it.

Is there any way to get rid of the warning not turning it off?

That's expected behaviour. Eclipse has no way of knowing that $arr holds a key that will become $var when extracted, and determining that $a was defined in another file isn't trivial either. — GordonM
I'm voting to close this question as off-topic because it's about a development tool, not a programming question — GordonM
I not expect Eclipse to analyze $arr for keys become extracted. But I expect it to get this information from PhpDoc comments. That's how it works in PhpStorm.. — izbushka
Eclipse isn't PHPStorm. If you want something that behaves like PHPStorm, then use PHPStorm. — GordonM

StR StR · Accepted Answer · 2017-01-23T22:21:24

This is fixed. You can write in b.php

/**
 * @var string  $a
 * @var MyClass $otherVar
 */
echo $a;    // No warning should be shown as if $a is undefined.
$otherVar-> // Autocomplete will show you MyClass methods and properties.

Eclipse PDT - Semantic Analysis

2 Answers