}
/**
- * Return a string consisting all callers in stack, somewhat useful sometimes
- * for profiling specific points
+ * Return a string consisting of callers in the stack. Useful sometimes
+ * for profiling specific points.
+ *
+ * @param $limit The maximum depth of the stack frame to return, or false for
+ * the entire stack.
*/
-function wfGetAllCallers() {
- return implode('/', array_map('wfFormatStackFrame',array_reverse(wfDebugBacktrace())));
+function wfGetAllCallers( $limit = 3 ) {
+ $trace = array_reverse( wfDebugBacktrace() );
+ if ( !$limit || $limit > count( $trace ) - 1 ) {
+ $limit = count( $trace ) - 1;
+ }
+ $trace = array_slice( $trace, -$limit - 1, $limit );
+ return implode( '/', array_map( 'wfFormatStackFrame', $trace ) );
}
/**