3v4l.org

run code in 300+ PHP versions simultaneously

@ 2014-04-09T15:29:42Z

<?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($params)
{
    if (!is_array($params)) {
        return "";
    }
    $result = array();
    foreach ($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 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13: <pre> BACKTRACE ========= 000 [/in/T72us:62] dbg_bt() 001 [/in/T72us:70] lol::rofl(stdClass) ========= Website content<br />/in/T72us<br /><br /><br />
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/T72us on line 60
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_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/T72us on line 60
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/T72us on line 60
Process exited with code 255.

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