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3 years ago
If you want to be able to run your PHP script from anywhere without changing to the directory first, use chdir(__DIR__) in the first file you run (not any includes):

<?php
spl_autoload_register();
chdir(__DIR__);

For some reason, trying to use namespaced classes from within other namespaced classes fails otherwise.

e.g. Running "php src/main.php" will fail, but "cd src && php main.php" will work.

src/main.php
<?php
spl_autoload_register();
//chdir(__DIR__); // Uncomment this to make it work from any directory
MyNamespace\MyClass::foo();

src/MyNamespace/MyClass.php
<?php
namespace MyNamespace;

class MyClass {
  public static function foo(): void {
    echo MyOtherClass::BAR; // This will fail even if MyOtherClass.php is in the right place
  }
}

src/MyNamespace/MyOtherClass.php
<?php
namespace MyNamespace;

class MyOtherClass {
  public const BAR = 'baz';
}
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