loop question

[jimfog]

Despite i am going to ask a general(crucial though) loop question i am going to use a specific example. Here is the example:

for ($i = 0; $i < ($maxday + $startday); $i++)

When this loop first starts the i begins from 0 or from 1? Or it starts from 1 on the second run?

[Ingolme]

I starts as 0.

[Don E]

and the second start should be 1.

[thescientist]

Despite i am going to ask a general(crucial though) loop question i am going to use a specific example. Here is the example:

for ($i = 0; $i < ($maxday + $startday); $i++)

When this loop first starts the i begins from 0 or from 1? Or it starts from 1 on the second run?

it could be as simple as adding some basic debugging

$loopCounter = 1; for ($i = 0; $i < ($maxday + $startday); $i++){  echo 'loop iteration #' . ++$loopCounter . '<br>';    echo 'i is => ' . $i . '</br>';};

[Ingolme]

it could be as simple as adding some basic debugging

$loopCounter = 1; for ($i = 0; $i < ($maxday + $startday); $i++){  echo 'loop iteration #' . ++$loopCounter . '<br>';    echo 'i is => ' . $i . '</br>';};

You should use $loopCounter++ or it's going to start at 2.

[jimfog]

thanks and thanks...I am trying to debug a code segment-where the above loop is contained- and is difficult to pinpoint the exact location of the error.I have to look every code detail again and again.I might make a post for it...for now I am still trying

[thescientist]

You should use $loopCounter++ or it's going to start at 2.

oh right. or have it start at 0. good catch.

[jimfog]

I just find where the problem is-using variable debugging is EXTREMELY HELPFUL. Having to figure out what each variable outputs is very cumbersome, using echos though, to actually see, what really do they output in the browser is a very good way of finding problems in the code..