Honestly, Exception::getTraceAsString() simply sucks, listing only the called method (below, for example, on line 89 function fail2() gets called, but there's no information that you have the originator is fail1()). The fact that, in the example below, the exception gets thrown on line 78, is completely omitted from the trace and only available within the exception. Chained exceptions are not supported as well.



Example:

#0 /var/htdocs/websites/sbdevel/public/index.php(70): seabird\test\C->exc()

#1 /var/htdocs/websites/sbdevel/public/index.php(85): seabird\test\C->doexc()

#2 /var/htdocs/websites/sbdevel/public/index.php(89): seabird\test\fail2()

#3 /var/htdocs/websites/sbdevel/public/index.php(93): seabird\test\fail1()

#4 {main}



jTraceEx() provides a much better java-like stack trace that includes support for chained exceptions:

Exception: Thrown from class C

at seabird.test.C.exc(index.php:78)

at seabird.test.C.doexc(index.php:70)

at seabird.test.fail2(index.php:85)

at seabird.test.fail1(index.php:89)

at (main)(index.php:93)

Caused by: Exception: Thrown from class B

at seabird.test.B.exc(index.php:64)

at seabird.test.C.exc(index.php:75)

... 4 more

Caused by: Exception: Thrown from class A

at seabird.test.A.exc(index.php:46)

at seabird.test.B.exc(index.php:61)

... 5 more



(see at the end for the example code)



<?php

function jTraceEx ( $e , $seen = null ) {

$starter = $seen ? 'Caused by: ' : '' ;

$result = array();

if (! $seen ) $seen = array();

$trace = $e -> getTrace ();

$prev = $e -> getPrevious ();

$result [] = sprintf ( '%s%s: %s' , $starter , get_class ( $e ), $e -> getMessage ());

$file = $e -> getFile ();

$line = $e -> getLine ();

while ( true ) {

$current = " $file : $line " ;

if ( is_array ( $seen ) && in_array ( $current , $seen )) {

$result [] = sprintf ( ' ... %d more' , count ( $trace )+ 1 );

break;

}

$result [] = sprintf ( ' at %s%s%s(%s%s%s)' ,

count ( $trace ) && array_key_exists ( 'class' , $trace [ 0 ]) ? str_replace ( '\\' , '.' , $trace [ 0 ][ 'class' ]) : '' ,

count ( $trace ) && array_key_exists ( 'class' , $trace [ 0 ]) && array_key_exists ( 'function' , $trace [ 0 ]) ? '.' : '' ,

count ( $trace ) && array_key_exists ( 'function' , $trace [ 0 ]) ? str_replace ( '\\' , '.' , $trace [ 0 ][ 'function' ]) : '(main)' ,

$line === null ? $file : basename ( $file ),

$line === null ? '' : ':' ,

$line === null ? '' : $line );

if ( is_array ( $seen ))

$seen [] = " $file : $line " ;

if (! count ( $trace ))

break;

$file = array_key_exists ( 'file' , $trace [ 0 ]) ? $trace [ 0 ][ 'file' ] : 'Unknown Source' ;

$line = array_key_exists ( 'file' , $trace [ 0 ]) && array_key_exists ( 'line' , $trace [ 0 ]) && $trace [ 0 ][ 'line' ] ? $trace [ 0 ][ 'line' ] : null ;

array_shift ( $trace );

}

$result = join ( "

" , $result );

if ( $prev )

$result .= "

" . jTraceEx ( $prev , $seen );



return $result ;

}

?>



Here's the example code:

<?php

class A {

public function exc () {

throw new \ Exception ( 'Thrown from class A' ); }

}



class B {

public function exc () {

try {

$a = new A ;

$a -> exc (); }

catch(\ Exception $e1 ) {

throw new \ Exception ( 'Thrown from class B' , 0 , $e1 ); }

}

}

class C {

public function doexc () {

$this -> exc (); }

public function exc () {

try {

$b = new B ;

$b -> exc (); }

catch(\ Exception $e1 ) {

throw new \ Exception ( 'Thrown from class C' , 0 , $e1 ); }

}

}



function fail2 () {

$c = new C ;

$c -> doexc (); }



function fail1 () {

fail2 (); }



try {

fail1 (); }

catch(\ Exception $e ) {

echo jTraceEx ( $e );

}

?>