Here is the php code where am comparing the two values. The courses values are what I passed from controller that is coming from the database and prev_course has the value previously selected. Though the comparison becomes same for one time it showing the else part of code every time. As you can see the 3rd output is same GRE and GRE but still showing not same
The output of the code comes like this
not same
prev course= GRE and from db=IELTS
not same
prev course= GRE and from db=TOFELS
not same
prev course= GRE and from db=GRE
here is the php code for comparison I have tried both == and ===
<?php foreach($instructor_course as $courses):?>
<?php if($courses['name']===$prev_course):?>
<?php echo 'same<br/>';?><?php echo "prev course=$prev_course"." and from db=".$courses['name'] ."<br/>";?>
<?php else: ?>
<?php echo 'not same <br/>';?><?php echo "prev course=$prev_course"." and from db=".$courses['name'] ."<br/>";?>
<?php endif;?>
<?php endforeach;?>
Try this:
foreach($instructor_course as $courses) {
if($courses['name'] === trim($prev_course)) {
echo 'same<br/>';
echo "prev course=$prev_course and from db=$courses['name']<br/>";
} else {
echo 'not same <br/>';
echo "prev course=$prev_course and from db=$courses['name'] <br/>";
}
}
Related
In my code there is some IFs that all are the same and working, Except one!
Here is the code
<?php
if($tmp['data']=='0')
{
?>
some code...
<?php
}
?>
<?php
if($tmp['data']=='1')
{
?>
some code...
<?php
}
?>
<?php
if($tmp['data']=='a')
{
?>
some code...
<?php
}
?>
<?php
if($tmp['data']=='b')
{
?>
some code...
<?php
}
?>
<?php
if($tmp['data']=='c')
{
?>
some code...
<?php
}
?>
$tmp['data'] is a value that is fetched from SQL database (varchar type).
IFs are working for all values, but when I set the value in phpmyadmin to 'c', related IF doesn't execute.
Any idea?
You should really use else if if more than one condition is never going to be true.
to debug try to comment everything else and just keeping the if of c, make sure it is not case sensitive (eg. server may return C, but you may check for c)
Try this peice of code to see if it works (though its bit complicated)
if( strcasecmp((string)$tmp['data'],"c")==0)
{
.. code here
}
I am using Views php in Drupal 6. I need to do an if statement to find if nodehierarchy_parent is equal to the value 0. Then do something. Right now I have it set to if the value contains a 0. My code is below.
<?php
if (strpos($data->nodehierarchy_parent,'0')) {
print 'hello';
}
else print $data->nodehierarchy_parent;
?>
I am new to stack. John's comment solved my problem but I cant mark his comment as correct answer. Below is the final code that worked.
<?php
if ($data->nodehierarchy_parent == 0) {
print 'hello';
}
else print $data->nodehierarchy_parent;
?>
echo (strpos($data->nodehierarchy_parent,'0') === false)
? $data->nodehierarchy_parent
: 'hello';
I have 6 product pages with id from 1 to 6. In the shopping cart page I have this code:
<?php if($objcartRS["catid"]==1 ){ echo "xxx"; ?> <?php } else { echo "yyy"; }?>
My problem is how can I add another page for ex the one with id 2 so it will be just 1 and 2 that will take the name xxx and the rest of the pages yyy?
I hope someone can help me.
As you said based on that you have to do very simple change in you condition that is add another condition in if with ||operator like below:-
<?php if($objcartRS["catid"]==1 || $objcartRS["catid"] == 2){ echo "xxx"; ?> <?php } else { echo "yyy"; }?>
Note:- Please note that $objcartRS["catid"] value must be integer type otherwise your condition will false. In that case you need to typecast your value to integer.
i have come to this strange issue.
i am getting values from array and trying to compare it but its not working.
Code-1
<?php
echo $data->item[0]['promocode'].'<br>';
echo $data->item[1]['promocode'];
?>
Output-1
inhouse
inhouse
Now lets try with if else condition if both values are same or not
Code-2
<?php
if(($data->item[0]['promocode']) == ($data->item[1]['promocode'])){
echo "both values are same";
} else {
echo "both values are NOT same";
}?>
Output-2
both values are NOT same
Very strange
i dont get it what i am doing wrong.
lets try above exaple with specifying variables
Code-3
<?php
$data0=$data->item[0]['promocode'];
$data1=$data->item[1]['promocode'];
if($data0 == $data1){
echo "both values are same";
} else {
echo "both values are NOT same";
}?>
Output-3
both values are NOT same
I am pulling my hairs now.
Now hard coding values in variables
Code-4
<?
$data0='inhouse';
$data1='inhouse';
if($data0 == $data1){
echo "both values are same";
} else {
echo "both values are NOT same";
}?>
Output-4
both values are same
So my question is why is this happening ?
i have array of elements and i wanna check previous value with the current value if try then do something.
thanks for your time.
Assuming both entries are strings (as shown in your first code example) my guess would be that your entries have unequal leading and / or trailing whitespace. Try normalising them first, eg
if (trim($data->item[0]['promocode']) == trim($data->item[1]['promocode']))
To see what's going on, try modifying your first example to
<?php
printf('<pre>"%s"%s"%s"</pre>',
$data->item[0]['promocode'],
PHP_EOL,
$data->item[1]['promocode']);
?>
Try like this
<?php
if(($data->item[0]['promocode']) === ($data->item[1]['promocode'])){
echo "both values are same";
} else {
echo "both values are NOT same";
}
?>
or you can use
strcmp($data->item[0]['promocode'],$data->item[1]['promocode']);
I use strlen($var) also for debugging...
<?php
if( strlen($data->item[0]['promocode']) == strlen($data->item[1]['promocode']) ){
if(($data->item[0]['promocode']) == ($data->item[1]['promocode'])){
echo "both values are same";
}
else {
echo "both values are NOT same";
}
}
else{
echo 'ther are different because
strlen($data->item[0]["promocode"]='.strlen($data->item[0]['promocode']).' and
strlen($data->item[1][|promocode"]) = '. strlen($data->item[1]['promocode']);
}
?>
Try using the non-type-casted conditional statement === to see if they are the same type.
Or for debugging perposes display the variable type to make sure you don't accidentally have some NULL objects or other weird data types.
if($data0 !== $data1) echo gettype($data0).' !== '.gettype($data1);
That should help you find out what you're actually comparing. Another option is to use var_dump($data); to actually display the variables all together. See if theres some discrepancies in the data types. It should help you find out if your object is actually populating correctly.
I'm getting an array of data from my model, and am using a php foreach statement to display it in a view. I'm adding another layer of logic to show only certain bookmark_ids.
The data is displaying fine; but for some reason the "else" message (tied to the first if clause) isn't showing if no data is returned. I need to figure out how to get that message to display.
<?php
if ($bookmark):
foreach($bookmark as $b): ?>
<?php if ($b->bookmark_id != 0) { ?>
<li><?php echo $bk->user_id; ?> <?php echo $bk->bookmark_name; ?></li>
<?php } ?>
<?php
endforeach;
else:
print "Your bookmark list is empty.";
endif;
?>
You a testing if $bookmark exists! I assume that it always exists, either empty or with array of values!
Try this:
<?php
if (is_array($bookmark) && count($bookmark)>=1):
foreach($bookmark as $b): ?>
<?php if ($b->bookmark_id != 0) { ?>
<li><?php echo $bk->bookmark_name; ?></li>
<?php } ?>
<?php
endforeach;
else:
print "Your bookmark list is empty.";
endif;
?>
Read: PHP is_array() | count()
EDITED
Related to the recently posted comment "Yes, the array is returning results; I am using the second if statement to limit what is shown. It sounds like my else statement should be tied to the second if clause, instead of the first. The issue for me isn't whether there are results; it's whether after the results are filtered anything remains.":
<?php
// reset variable
$count = 0;
// if it is an array and is not empty
if (is_array($bookmark) && count($bookmark)>=1):
foreach($bookmark as $b):
if ($b->bookmark_id != 0) {
echo '<li>' . $bk->bookmark_name . '</li>';
} else {
$count++; // no data, increase
}
// check if the counter was increased
if ($count>=1) {
print "Your bookmark list is empty.";
}
endforeach;
else:
print "bookmark not found.";
endif;
?>
For one reason or another, $bookmark is evaluating to true. Since empty strings and arrays already evaluate to false in PHP, we might reasonably suppose that $bookmark is in fact an object. Since we can iterate over it with foreach, it is probably an instance of ArrayObject, or a class that extends it. We could debug the exact type of $bookmark by writing:
var_dump($bookmark);
Since an empty object instance evaluates to true in a PHP conditional, we need to be more specific about what we're checking for.
if(count($bookmark) > 0):
This should trigger the else condition properly. As a side note, you should really indent your code properly. :)
if (is_array($bookmark) && !empty($bookmark)) {
foreach ($bookmark as $item) {
...
}
} else {
echo "Your bookmark list is empty.";
}