3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
<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 hhvm-3.12.0
<pre> BACKTRACE ========= 000 [/in/2h485:-1] dbg_bt() 001 [/in/2h485:-1] 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 - 4.4.1
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.