Online PHP editor | output for lsicN

@ 2025-11-10T11:28:52Z

<?php

class Lock { 
    function __destruct() {
        echo "***lock released now***\n";
    }
}

class LockedFile {
    private $lock;
    function __construct(string $path) {
        $this->lock = new Lock();
    }
}

class LineReader {
    function __construct(private LockedFile $file) {}
    function readLines() {
    }
}

function process_lines(LineReader $reader) {
    throw new Exception("readLines");
}

function process_file(string $path): string {
  try {
    $file = new LockedFile($path);
    $reader = new LineReader($file);
    process_lines($reader);
  } catch (Exception $e) {
    // release file
    echo "unsetting \$file, \$reader...\n";
    unset($file, $reader);

    // $file is still referenced via $e->getTrace()[0]['args'][0]->file 

    throw new Exception('Processing failed', previous: $e);
  }
 
  return $content;
}

process_file('/some/file.txt');

Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14: unsetting $file, $reader... Fatal error: Uncaught Exception: readLines in /in/lsicN:23 Stack trace: #0 /in/lsicN(30): process_lines(Object(LineReader)) #1 /in/lsicN(44): process_file('/some/file.txt') #2 {main} Next Exception: Processing failed in /in/lsicN:38 Stack trace: #0 /in/lsicN(44): process_file('/some/file.txt') #1 {main} thrown in /in/lsicN on line 38 ***lock released now***
Process exited with code 255.

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