How to know all the calls in PHP

BrodaNoel · October 16, 2013

Hello everybody.

First: Sory for my english.

I'm searching a way to know wich lines of files are executed in all the request... Or something like that.

Example:

If we have this code:

line 01: <?php
line 02: function foo(){
line 03:      echo 'Hello';
line 04:      return false;
line 05: }
line 06: 
line 07: echo 'We are testing';
line 08: foo();
line 09: echo 'end of script';
line 10: ?>

I need get the lines and the files executeds...

For example, a log-file with this information:

file index.php

lines executeds: 07, 08, 02, 03, 04, 09, 10

Or something like that... I don't know...

Anybody can help me?

Tnks!

Noel

vinny42 · October 16, 2013

Look for xdebug, that can generate code-coverage reports that tell you which lines have been executed.

But, it's much more useful to use an IDE like phpstorm or netbeans, then you can start a stript and pause it to see where what the scripts is doing, and step through the script line by line

and see what all the variables etc contain.

BrodaNoel · October 16, 2013

Oh! Very well.

It's like I need... But, the Code Coverage of XDebug only talk me wich lines has been called, not in wich order, or if any line has been executed more of one time.

Can you help me with that? I'm looking the documentation, but, I can't see anything that solve my problem.

However, if the XDebug library can do that, obviously can do that I need... Maybe with a "little" change.

Tnks!

Edited October 16, 2013 by BrodaNoel

Ch0cu3r · October 16, 2013

Maybe debug_print_backtrace may help you?

vinny42 · October 16, 2013

A backtrack can't go back indefinately, there is a limit to how many calls you can see, and even then you have to count them manually.

It's either going to be xdebug, wich also won't trace indefinately, or Zend Studio, which costs a bundle.

With xdebug and netbeans you can at least see what you code is doing by stepping through it.

Perhaps you should tell us a bit more about what you are trying to see in this information?

BrodaNoel · October 17, 2013

Look, my idea is create a project like "code-coverage", but, with a little diference:

This project is a library. When this library is activated in a web-site in development-environment, the library will create a visual-log in HTML format + very much CSS and jQuery and more...

The idea is: When a test-user visit the site, when the request is finaliced, he can open example.com/log.html and see all the lines executeds in the last request... And then, he can understand all the "way" of the request...

Very usefull for a new developer when he need understand the site...

Or, for another example: to I can explain how to work a site to a other developer, without open the code.

Do you understand? Sory, sorry toooo much for my english.

Edit:

The problem with debug_print_backtrace, is: this function only show the calls to functions... I need know all the lines executeds.

In spanish:

Quiero hacer una libreria para poder visualizar todo el camino que recorrió el request (linea por linea) de manera GRAFICA, con CSS, HTML, y demas.

Para hacer esta librería, necesito conocer el recorrido exacto del codigo fuente.

Edited October 17, 2013 by BrodaNoel

vinny42 · October 17, 2013

I can't read spanish.

I understand what you want to do; log the execution of a script line by line so you can debug the script by looking at the log.

ZendStudio can do this and the logs are *huge* because if you go into a loop of twenty lines, that executes 500 loops, you get 10000 lines in your log, which makes it unreadable.

This is why xDebug aggregates the results and only tells you how many times each function was called. This is much more usefull information than a full line-by-line log.

If you want to know which lines are executed it is also much more usefull to use a breakpoint and step-through the code.

So yes I understand what you want an no you can't do that and you porobably shouldn't anyway :-)

BrodaNoel · October 17, 2013

Viiny...

Why you tell me: "probably you can't do that", but also tell me "Zend Studio can do this".

How ZendStudio can? Should be/exists a library to do this. What do you think?

Is not important if the log is unreadable... My library will be the "magic" for solve this problem... I'm only need get the -unreadable- log and the next steps is my work.

Again, sorry for my english.

see you gays!

And TNKS for all the replys (soo quickly!)

AbraCadaver · October 18, 2013

.josh · October 18, 2013

Okay so how exact do you want this? Let's say you have the following:

<html>
<head>
<script type='text/javascript' src='someScript.js' /></script>
</head>
<body>
<?php
include('db/connect.php');
$query = 'select param, value from table';
$result = $mysqli->query($query);
?>
<script type='text/javascript'>
var config = {};
<?php
if ($result) {
  while ($row = $result->fetch_row()) {
    echo "config.{$row[0]} = '{$row[1]}';";
  }
}
?>
runScript(config);
</script>
</body>
</html>

Show me exactly what you expect to see in the log file from this.

vinny42 · October 18, 2013

Why yo-u tell me: "probably you can't do that", but also tell me "Zend Studio can do this".

How ZendStudio can? Should be/exists a library to do this. What do you think?

ZendStudio uses a binary plugin for PHP that hooks into PHP itself, so you cannot do this unless you also write a plugin in C++ and compile it and load it on the webserver.

Is not important if the log is unreadable... My library will be the "magic" for solve this problem... I'm only need get the -unreadable- log and the next steps is my work.

My point is: you cannot make the log readable, there is simply too much data to make it understandable.

BrodaNoel · October 18, 2013

Okay so how exact do you want this? Let's say you have the following:

<html>
<head>
<script type='text/javascript' src='someScript.js' /></script>
</head>
<body>
<?php
include('db/connect.php');
$query = 'select param, value from table';
$result = $mysqli->query($query);
?>
<script type='text/javascript'>
var config = {};
<?php
if ($result) {
  while ($row = $result->fetch_row()) {
    echo "config.{$row[0]} = '{$row[1]}';";
  }
}
?>
runScript(config);
</script>
</body>
</html>

Show me exactly what you expect to see in the log file from this.

Hello!

Suppose that: the db/connect.php file, have 18 lines (without any function)

The log will be like that (all the following lines, will be into the log file)

index.php - lines: 7

db/connect.php - lines: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18

index.php - lines: 8,9,14,15,16,16,16,16,16,16,16,16,16,16,17,18

END OF FILE.

Look, if "->query()" or "->fetch_row()" are functions in a php-library, the lines executeds when its functions are called should be writed in the log file. then, the log will look like that:

index.php - lines: 8,9,14,15,16