break apart a variable

[Auddog]

I would like to know how I can break apart a variable. I'm currently
passing the variable $id-hours and I would like to break it down. I would
like to break down to something similar to:

$eid = id (id part of $id-hours)
$ehour = hours (hours part of $id-hours)

Is this possible? I'm new to programming and just trying to get thru it
all. Thanks for any help that you may be able to provide.

A

[Rik]

Re: break apart a variable

Auddog <will_k@hotmail .comwrote:

I would like to know how I can break apart a variable. I'm currently
passing the variable $id-hours and I would like to break it down. I
would
like to break down to something similar to:
>
$eid = id (id part of $id-hours)
$ehour = hours (hours part of $id-hours)

How is $id-hours formatted?

Is this possible? I'm new to programming and just trying to get thru it
all. Thanks for any help that you may be able to provide.

Several functions come to mind. You might want to use one of these:
- explode()
- fscanf()
- split()
- preg_match()

Not much else I can say without knowing the format.

Also, why do you have this in 1 variable? More logical would be:

$var = array('id'='you r_id','hours' ='your_hours', 'foo' ='bar');
--
Rik Wasmus

[Jerry Stuckle]

Re: break apart a variable

Auddog wrote:

I would like to know how I can break apart a variable. I'm currently
passing the variable $id-hours and I would like to break it down. I would
like to break down to something similar to:
>
$eid = id (id part of $id-hours)
$ehour = hours (hours part of $id-hours)
>
Is this possible? I'm new to programming and just trying to get thru it
all. Thanks for any help that you may be able to provide.
>
A
>
>

Not easily. When you pass a variable to a function the name of the
variable changes.

But why would you need to, anyway? Variable names are just there for
human readability; they should be meaningful to the programmer, but the
computer doesn't care.

And BTW - $id-hours is an invalid variable name. The hyphen isn't valid
in a variable name.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attgl obal.net
=============== ===

[Auddog]

Re: break apart a variable

My form is created by querying my database for id, fname, lname of employees
and then I add an input box for hours worked. I want everyone that works on
the production lines listed. I then would like to be able to insert the
form information into a database. I just don't know how to do this. I'm
grasping at straws right now.

Here is my form code:
<?php

//create query
$query = "SELECT id, fname, lname FROM prod_employee where active = 'yes'";

//excute query
$result = mysqli_query($c onnection, $query) or die ("Error in query: $query.
".mysqli_error( ));

// see if any rows were returned
if (mysqli_fetch_a rray($result) 0) {
// yes
// print them one after another
while (list($id, $fname, $lname) = mysqli_fetch_ro w($result))
{
echo " <tr>
<td><div align=center>$i d</div></td>
<td>$fname</td>
<td>$lname</td>
<td><input name=$id-hours type=text size=4 maxlength=4 />
</tr>";
}
echo "</table>";
}
else {
// no
// print status message
echo "No rows found!";
}

Again thanks for any help that you can provide.

A


"Rik" <luiheidsgoeroe @hotmail.comwro te in message
news:op.tndy6vf 5qnv3q9@misant. kabel.utwente.n l...
Auddog <will_k@hotmail .comwrote:

I would like to know how I can break apart a variable. I'm currently
passing the variable $id-hours and I would like to break it down. I
would
like to break down to something similar to:
>
$eid = id (id part of $id-hours)
$ehour = hours (hours part of $id-hours)

How is $id-hours formatted?

Is this possible? I'm new to programming and just trying to get thru it
all. Thanks for any help that you may be able to provide.

Several functions come to mind. You might want to use one of these:
- explode()
- fscanf()
- split()
- preg_match()

Not much else I can say without knowing the format.

Also, why do you have this in 1 variable? More logical would be:

$var = array('id'='you r_id','hours' ='your_hours', 'foo' ='bar');
--
Rik Wasmus

[Rik]

Re: break apart a variable

Auddog <will_k@hotmail .comwrote:

My form is created by querying my database for id, fname, lname of
employees
and then I add an input box for hours worked. I want everyone that
works on
the production lines listed. I then would like to be able to insert the
form information into a database. I just don't know how to do this. I'm
grasping at straws right now.
>
Here is my form code:
<?php
>
// see if any rows were returned
if (mysqli_fetch_a rray($result) 0) {

This would mean you always discard the first row, use
mysqli_num_rows ($result) instead.

while (list($id, $fname, $lname) = mysqli_fetch_ro w($result))
{
echo " <tr>
<td><input name=$id-hours type=text size=4 maxlength=4 />
</tr>";
}
echo "</table>";
}

I'd do this:

echo '<input name="hours['.$id.']" type="text" size="4" maxlength="4" >';

And upon receiving, you'll have an array in $_POST (or $_GET, but don't do
that) named 'hours' containing the id as key and the value as the input.
Check this with print_r($_POST['hours']);

To keep using the current form, you'd have to do something like this:

$hours = array();
foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key){
$keyarray = explode('-',$key);
$hours[$keyarray[0]] = $value;
}
}
print_r($hours) ;
--
Rik Wasmus

[Auddog]

Re: break apart a variable

Rik,

Thanks for the feed back and here is what I got from it. By placing the [ ]
around the $id (what's the periods for???) it will create an array for
$hours. What is the key? I see you assign the id as it's value, is that
html or php? Lastly, when I execute the code all I get on the screen is
Array ( ). I can place all my code here if it would help. Thanks again for
all your help, it is greatly appreciated.

A

Sorry for all the questions, but I want to understand what each line is
doing so that I can get this figured out.


"Rik" <luiheidsgoeroe @hotmail.comwro te in message
news:op.tnd3qml wqnv3q9@misant. kabel.utwente.n l...
Auddog <will_k@hotmail .comwrote:

My form is created by querying my database for id, fname, lname of
employees
and then I add an input box for hours worked. I want everyone that works
on
the production lines listed. I then would like to be able to insert the
form information into a database. I just don't know how to do this. I'm
grasping at straws right now.
>
Here is my form code:
<?php
>
// see if any rows were returned
if (mysqli_fetch_a rray($result) 0) {

This would mean you always discard the first row, use
mysqli_num_rows ($result) instead.

while (list($id, $fname, $lname) = mysqli_fetch_ro w($result))
{
echo " <tr>
<td><input name=$id-hours type=text size=4 maxlength=4 />
</tr>";
}
echo "</table>";
}

I'd do this:

echo '<input name="hours['.$id.']" type="text" size="4" maxlength="4" >';

And upon receiving, you'll have an array in $_POST (or $_GET, but don't do
that) named 'hours' containing the id as key and the value as the input.
Check this with print_r($_POST['hours']);

To keep using the current form, you'd have to do something like this:

$hours = array();
foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key){
$keyarray = explode('-',$key);
$hours[$keyarray[0]] = $value;
}
}
print_r($hours) ;
--
Rik Wasmus

[Rik]

Re: break apart a variable

Auddog <will_k@hotmail .comwrote:

Rik,
>
Thanks for the feed back and here is what I got from it. By placing the
[ ]
around the $id (what's the periods for???) it will create an array for
$hours.

Nonono.

By creating the _string_ with the id in it, you html output with for
instance id = 12 would looke like:

<input name="hours[12]" value="somevalu e">

Which on return will be interpreted by PHP as:

_POST Array
(
'hours' =Array
(
12 ='somevalue'
)
)

--
Rik Wasmus

[Auddog]

Re: break apart a variable

Here is what my input looks like from my browser (view page source):

<input name=hours['.3.'] type=text size=4 maxlength=4 >

Is that the same? I'm sorry for being slow at getting this.

A


"Rik" <luiheidsgoeroe @hotmail.comwro te in message
news:op.tnd8n4z xqnv3q9@misant. kabel.utwente.n l...
Auddog <will_k@hotmail .comwrote:

Rik,
>
Thanks for the feed back and here is what I got from it. By placing the
[ ]
around the $id (what's the periods for???) it will create an array for
$hours.

Nonono.

By creating the _string_ with the id in it, you html output with for
instance id = 12 would looke like:

<input name="hours[12]" value="somevalu e">

Which on return will be interpreted by PHP as:

_POST Array
(
'hours' =Array
(
12 ='somevalue'
)
)

--
Rik Wasmus

[Rik]

Re: break apart a variable

Auddog <will_k@hotmail .comwrote:

Here is what my input looks like from my browser (view page source):
>
<input name=hours['.3.'] type=text size=4 maxlength=4 >
>
Is that the same? I'm sorry for being slow at getting this.

No, it is not. I gave you the code. Copy/paste it if need be.

--
Rik Wasmus

[Auddog]

Re: break apart a variable

OK, I see the errors of my way. I now get :

<input name="hours[20]" type="text" size="4" maxlength="4">

I cut and pasted you code into the top part of my page - here is the code:

<?php

if (isset($_POST['submitted'])) {

$hours = array();
foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key)){
$keyarray = explode('-',$key);
$hours[$keyarray[0]] = $value;
}
}
print_r($hours) ;


//if - else statement isset
} else {

?>

When I run this all I get is array ( ) - is there something else I'm
missing.



"Rik" <luiheidsgoeroe @hotmail.comwro te in message
news:op.tnd93ac 9qnv3q9@misant. kabel.utwente.n l...
Auddog <will_k@hotmail .comwrote:

Here is what my input looks like from my browser (view page source):
>
<input name=hours['.3.'] type=text size=4 maxlength=4 >
>
Is that the same? I'm sorry for being slow at getting this.

No, it is not. I gave you the code. Copy/paste it if need be.

--
Rik Wasmus

[Rik]

Re: break apart a variable

Auddog <will_k@hotmail .comwrote:

When I run this all I get is array ( ) - is there something else I'm
missing.

Yes, before that piece of code I said:"To keep using the current form".
This , to me, would mean fully spelled out: "If you do not want to change
your form like this, and keep on using the form you allready have, then I
suggest the following approach.

In short: I gave to answers: one to alter the form and have an easier time
to process it, one how to process the current form you have now.

Please try to read answers more carefully, and when something doesn't
work, reread them to make sure you did not miss anything.
--
Rik Wasmus

[Curtis]

Re: break apart a variable

Auddog wrote:

"Rik" <luiheidsgoeroe @hotmail.comwro te in message
news:op.tnd93ac 9qnv3q9@misant. kabel.utwente.n l...

>Auddog <will_k@hotmail .comwrote:
>>
>Here is what my input looks like from my browser (view page source):
>>
><input name=hours['.3.'] type=text size=4 maxlength=4 >
>>
>Is that the same? I'm sorry for being slow at getting this.
>>
>No, it is not. I gave you the code. Copy/paste it if need be.
>>

>
OK, I see the errors of my way. I now get :
>
<input name="hours[20]" type="text" size="4" maxlength="4">
>
I cut and pasted you code into the top part of my page - here is the code:
>
<?php
>
if (isset($_POST['submitted'])) {
>
$hours = array();
foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key)){
$keyarray = explode('-',$key);
$hours[$keyarray[0]] = $value;
}
}
print_r($hours) ;
>
>
//if - else statement isset
} else {
>
?>
>
When I run this all I get is array ( ) - is there something else I'm
missing.

Let's see what you get, alter Rik's code and post the output back to
us (if it repeats a lot, just post enough to get a look at what the
keys look like):

$hours = array();

echo '<pre>';
print_r($_POST) ; // dump all submitted POST data
echo '</pre><br>';

foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key)){
$keyarray = explode('-',$key);
$hours[$keyarray[0]] = $value;
}
}
print_r($hours) ;

[Rik]

Re: break apart a variable

Curtis <zer0dyer@veriz on.netwrote:

Let's see what you get, alter Rik's code and post the output back to
us (if it repeats a lot, just post enough to get a look at what the
keys look like):
>
$hours = array();
>
echo '<pre>';
print_r($_POST) ; // dump all submitted POST data
echo '</pre><br>';
>
foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key)){

The would only be usefull if the postfields were still in the 'id-hours'
format. It's now in 'hours[id]'.

So just print_r($_POST['hours']);
--
Rik Wasmus

[Auddog]

Re: break apart a variable

I went back and did as you told me. I was assuming the second option was
what was happening after you hit the submit button. I apologize for not
following the instructions,. I guess I'm biting off more than I know with
this script.

I was able to change my page and I did start getting the results: Array (
[1] =8 [2] =[3] =[4] =[5] =8 ETC. I'm still curious as to how the
=got into the mix, but I'll do some reading to figure that out. Now that
I'm getting the something, maybe I'll be able to get it into my database.
Thanks again for all your time and help.

A


"Rik" <luiheidsgoeroe @hotmail.comwro te in message
news:op.tneon22 kqnv3q9@misant. kabel.utwente.n l...
Curtis <zer0dyer@veriz on.netwrote:

Let's see what you get, alter Rik's code and post the output back to
us (if it repeats a lot, just post enough to get a look at what the
keys look like):
>
$hours = array();
>
echo '<pre>';
print_r($_POST) ; // dump all submitted POST data
echo '</pre><br>';
>
foreach($_POST as $key =$value){
if(preg_match('/^[0-9]+-hours$/i',$key)){

The would only be usefull if the postfields were still in the 'id-hours'
format. It's now in 'hours[id]'.

So just print_r($_POST['hours']);
--
Rik Wasmus