note 69786 added to function.debug-backtrace

Hi, I got tired of using a trace( $message, __FILE__, __LINE__ ) function I made. It forced me to include the file and line params (since php doesn't have macros) so I decided to make an alternative. Simply call this new version using trace( 'my message' ); and it prints out a stack trace in a clearer way than the one stored in the debug_backtrace() array. It handles traces from outside of functions, traces in nested functions, and traces in included files, and also displays the function in a way that can be pasted right back into your php code for faster testing! NOTE - be sure to save your files with the correct line endings for the line numbers to work correctly, which for Mac OS X is unix. You can get to this option in the popup menu in the toolbar at the top of each window in BBEdit. <?php function print_var( $var ) { if( is_string( $var ) ) return( '"'.str_replace( array("\x00", "\x0a", "\x0d", "\x1a", "\x09"), array('\0', '\n', '\r', '\Z', '\t'), $var ).'"' ); else if( is_bool( $var ) ) { if( $var ) return( 'true' ); else return( 'false' ); } else if( is_array( $var ) ) { $result = 'array( '; $comma = ''; foreach( $var as $key => $val ) { $result .= $comma.print_var( $key ).' => '.print_var( $val ); $comma = ', '; } $result .= ' )'; return( $result ); } return( var_export( $var, true ) ); // anything else, just let php try to print it } function trace( $msg ) { echo "<pre>\n"; //var_export( debug_backtrace() ); echo "</pre>\n"; return; // this line shows what is going on underneath $trace = array_reverse( debug_backtrace() ); $indent = ''; $func = ''; echo $msg."\n"; foreach( $trace as $val) { echo $indent.$val['file'].' on line '.$val['line']; if( $func ) echo ' in function '.$func; if( $val['function'] == 'include' || $val['function'] == 'require' || $val['function'] == 'include_once' || $val['function'] == 'require_once' ) $func = ''; else { $func = $val['function'].'('; if( isset( $val['args'][0] ) ) { $func .= ' '; $comma = ''; foreach( $val['args'] as $val ) { $func .= $comma.print_var( $val ); $comma = ', '; } $func .= ' '; } $func .= ')'; } echo "\n"; $indent .= "\t"; } echo "</pre>\n"; } trace( 'error outside function' ); function test( $param1, $param2, $param3, $param4 ) { trace( 'error in test()' ); } test( 1.1, "param2\n", array( 1 => "a\n", "b\n" => 2 ), false ); ?> ---- Server IP: 66.163.161.117 Probable Submitter: 71.221.131.120 ---- Manual Page -- http://www.php.net/manual/en/function.debug-backtrace.php Edit -- https://master.php.net/note/edit/69786 Del: integrated -- https://master.php.net/note/delete/69786/integrated Del: useless -- https://master.php.net/note/delete/69786/useless Del: bad code -- https://master.php.net/note/delete/69786/bad+code Del: spam -- https://master.php.net/note/delete/69786/spam Del: non-english -- https://master.php.net/note/delete/69786/non-english Del: in docs -- https://master.php.net/note/delete/69786/in+docs Del: other reasons-- https://master.php.net/note/delete/69786 Reject -- https://master.php.net/note/reject/69786 Search -- https://master.php.net/manage/user-notes.php