Calling function

[johny10151981]

Hello All,
Is there any way to call the mother function?

I mean

<?php
 function a()
 {
  
  b();
 }
 function b()
 {
  echo __MOTHER_FUNCTION__;
 }
?>

expected out put is

 a()

is there anything like that?

Please let me know

[code green]

Do you mean get the name of the function that the current function was called by?

If so, defining it a Mother function is incorrect terminology.
I define it simply as a calling function.

I am not aware of a php function that does this.
A work around would be to pass a parameter as a marker.

[johny10151981]

hey green,
i thought about that too, passing the function name. But I was looking for if any option available to access the function stack.

[Markus]

Well, for debugging purposes you can use debug_backtrace.

[johny10151981]

In fact I did saw that function before.

But the problem is I have called some of my function from lots of different files. The problem occurs when a silly query error occurs i can figure out at what function I am getting the error. But It sometime become a head ache from which other function i have called it.

[Dormilich]

shouldn’t that be given in the stacktrace? (ok, I only use stacktraces from exceptions, but that should not be much different from debug_backtrace ())

[code green]

But the problem is I have called some of my function from lots of different files

It may help your problem using one of the file functions or pre-defined constants to identify the calling FILE.
Can't be certain how, but there are plenty.

[Dormilich]

usually the stacktrace lists all called functions, their file names, lines, etc.

[Markus]

Dormilich is right.

php > function a() { b(); }
php > function b() { c(); }
php > function c() { var_dump(debug_backtrace()); }
php > a();

// Gives:
abcarray(3) {
  [0]=>
  array(4) {
    ["file"]=>
    string(14) "php shell code"
    ["line"]=>
    int(1)
    ["function"]=>
    string(1) "c"
    ["args"]=>
    array(0) {
    }
  }
  [1]=>
  array(4) {
    ["file"]=>
    string(14) "php shell code"
    ["line"]=>
    int(1)
    ["function"]=>
    string(1) "b"
    ["args"]=>
    array(0) {
    }
  }
  [2]=>
  array(4) {
    ["file"]=>
    string(14) "php shell code"
    ["line"]=>
    int(1)
    ["function"]=>
    string(1) "a"
    ["args"]=>
    array(0) {
    }
  }
}

[Dormilich]

I have to mention that I prefer Exceptions, simply because I can control the programme flow. (no need to go through the database code if the connection fails)

[johny10151981]

Thanks for you replies, I will study your suggestions