Can two methods in the same type in PHP be called to each other?

Can the two methods in the same class in PHP call each other? It is okay to solve, and paste the code. the method you call has a problem. public & nbsp; function & nbsp; execute_dql_fenye ($ sql1, $ sq PHP can the two methods in the same class call each other?
Solutions ,,,,,,,,,,,
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Of course.
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Post Code. you have a problem with the method of calling
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Public function execute_dql_fenye ($ sql1, $ sql2, $ fenyePage ){

}
Public function abc (){
$ This-> execute_dql_fenye (& $ sql1, & $ sql2, & $ fenyePage );
}