3v4l.org

run code in 300+ PHP versions simultaneously

@ 2014-04-09T15:28:55Z

<?php

function dbg_bt($level = 0)
{
    $currentLevel = 0;
    $level = (int)$level;
    $trace = debug_backtrace();

    echo "\nBACKTRACE\n=========\n";
    foreach ($trace as $data ) {
        $parsed = parse_dbg($data);
        echo sprintf("%03d %s\n", $currentLevel, $parsed);
        $currentLevel++;
        if ( 0 !== $level && $currentLevel >= $level) {
            break;
        }
    }
    echo "=========\n\n";
}
function parse_dbg ($data)
{
    if (!is_array($data)) {
        return "";
    }
    if (!empty($data['type'])) {
        return sprintf(
            "[%s:%d] %s%s%s(%s)",
            $data['file'],
            $data['line'],
            $data['class'],
            $data['type'],
            $data['function'],
            get_args($data['args'])
        );
    }
    else {
        return sprintf(
            "[%s:%d] %s(%s)",
            $data['file'],
            $data['line'],
            $data['function'],
            get_args($data['args'])
        );
    }
}
function get_args(array $params)
{
    $result = array();
    foreach ($params as $val) {
        if('object' == gettype($val)) { $result[] = get_class($val); }
        else { $result[] = gettype($val); }
    }
    return implode(", ", $result);
}

class lol {
    static public function rofl($args = null) {
        ob_start();
        dbg_bt();
        $x = ob_get_contents();
        ob_end_clean();
        echo $x; // replace with trigger error
    }
}

echo "<pre>";
lol::rofl(new StdClass());
echo "Website content<br />".__FILE__."<br /><br /><br />";

Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: <pre> BACKTRACE ========= 000 [/in/2h485:59] dbg_bt() 001 [/in/2h485:67] lol::rofl(stdClass) ========= Website content<br />/in/2h485<br /><br /><br />
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/2h485 on line 46
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/2h485 on line 46
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/2h485 on line 46
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/2h485 on line 46
Process exited with code 255.

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