I'm trying to use PHP to display some JSON data from an API. I need to use foreach to return all my results but nested within them is an array. The array is "highlights" which sometimes has "description" and sometimes "content" and sometimes both. I need to do a foreach within a foreach or something along those lines but everything I try just returns "Array".
Here's the JSON...
https://api.data.gov/gsa/fbopen/v0/opps?q=lte+test+bed+system&data_source=FBO&limit=100&show_closed=true&api_key=CTrs3pcYimTdR4WKn50aI1GcUxyL9M4s1fyBbSer
Here's my PHP...
$json_returned = file_get_contents("JSON_URL");
$decoded_results = json_decode($json_returned, true);
echo "Number Found:".$decoded_results['numFound']."</br> ";
echo "Start:".$decoded_results['start']."</br>";
echo "Max Score:".$decoded_results['maxScore']."</br>";
foreach($decoded_results['docs'] as $results){
echo "Parent Link T:".$results['parent_link_t']."</br>";
echo "Description:".$results['highlights']['description']."</br>";
}
Obviously the working version I'm using has a lot more fields programmed in but I cut them out to keep this code short and simple and show how I have everything else besides the "hightlights" field in one foreach. The JSON returns require that I keep everything in that foreach, so how to I display the array inside of it?
Thanks for any help and thanks for taking the time to read this even if you can contribute.
The 'description' is array with one element so you can use this.
echo 'Description:' . $results['highlights']['description'][0];
If it sometimes has 'description' and sometimes 'content'. Use isset to check which one it is, or even if there are both and print accordingly.
// for description
if(isset($results['highlights']['description'])) {
echo 'Description:' . $results['highlights']['description'][0];
}
// for content
if(isset($results['highlights']['content'])) {
echo 'Content:' . $results['highlights']['content'][0];
}
Hope this helps.
Look into the php array_column() function: http://php.net/manual/de/function.array-column.php
I can't seem to find a simple solution. I'm trying to loop through a $_POST array like this:
foreach($_POST as $value => $key)
{
echo $value;
}
The values that I get back are all chained together with underline character like this:
Element_one_Element_two_Element_Three_Element_Four_submit
How can I get the array to simply display each elements without the underline and the appropriate break like this:
Element one
Element two
Element three
Element four
Because I'm creating and sending the contents of the post array dynamically to the database I don't to use hard code like $_POST["someArrayElementName'];
Thanks for any help!
This should work for you:
(Here I just simply use str_replace() to change all underlines to spaces and at the end I append a new line tag)
echo str_replace("_", " ", $value) . "<br />";
I'm building a form that's in a loop, so that the user can choose how many rows they want to put into the database. And all my input-names have this value art_$i where $i is the number of the rows, that my loop generates.
When the form-button is pressed, I then try to pull out the value of each $_POST['art_X'] by creating a second loop that repeats itself the same amount of times as my $i loop that is naming by inputs as art_1, art_2, art_3 etc. This second loop I call $b, here's how I try to solve the problem.. It just isn't working at all!
$convert_post_to_variable = "$_POST[art_" . $b . "]";
Any suggestions on how I could solve this problem, would be MUCH APPRECIATED! :-D
Don't use quotes around variable names. It makes a mess of things, and then you would have to use curly brackets... just don't do it. You can use an arbitrary string key on an associative array like this:
$convert_post_to_variable = $_POST['art_' . $b];
Use the following code:
$convert_post_to_variable = $_POST[ 'art_' . $b ];
I had this working by simply passing the data from one variable to another like so:
$CalcsSets = $DisplayCalcs;
without the need to use the loop inside the first if() statement and it inserted the data without quotes but all of a sudden it's stopped working and I'm not sure why (it only started showing last integer), so I went with the more complex code trying to get it to work again as shown below.
Here's the complex code I'm working with:
for($i=1; $i<=$CalcSets; $i++){
$calculations = PerformCalc($min, $highest, $OperatorType);
echo 'Calculations performed for '.$SetText[$i];
foreach ($calculations as $key => $DisplayCalcs) {
echo $SetCalc[] = $DisplayCalcs.', '; //stores calculations with ',' in
//array.
}
if($CalcSets == 1){
for($i=0;$i<$CalcSets;$i++){
$SetResults = $SetCalc[$i];
echo '<strong>'.(string)$SetResults.'</strong>';
}
DB_Insert($SetResults);
}
What it's supposed to do is insert values in the following format (1,2,3,4,5,) into the database in a VARCHAR row but now all it shows is the last integer with no comma. I originally wanted to just store the integers and not a comma but I couldn't get it to display on the page with commas after each integer so I went this route as mentioned earlier.
I realize I'm probably going about this the wrong way, but if any of you know a much easier, and shorter, way to do what I want, I'd be extremely appreciative of the help.
Reason I'm doing it this way, is because on the results page, it needs to show in the format mentioned above.
FYI, I did check the DB row and it is still set to VARCHAR with a length of 10 at the moment.
UPDATE TO MAKE INTENTIONS MORE CLEAR
Ok, I'm going to go back to square one and try to make my intention as clear as possible. I've been rewriting this code snippet more times than I care to count and my brain is all foggy lol.
array1 = array(1, 2, 3, 4, 5, 6);
foreach(array1 as $key => $data){
echo $data.',';
// will display 1,2,3,4,5,6, in browser.
}
if(is_true == 1){
INSERT ALL $data values into DB here.
}
That's what I'm trying to accomplish in it's simplest form, I'm just have extreme difficulty achieving my goal.
Second Update - Topic Solved
Apparently, the DB field had to be set to Text rather than VarChar. I guess we learn something new everyday.
Again, thanks everyone for all of your help. It was greatly appreciated!
I'm sorry but I couldn't make much sense from the original code but focusing only on the last IF and the containing LOOP, I think the problem is with the assignment statement:
$SetResults = $SetCalc[$i];
It should instead use .= for concatenation. Here is how it should look:
if($CalcSets == 1){
for($i=0;$i<$CalcSets;$i++){
$SetResults .= $SetCalc[$i];
echo '<strong>'.(string)$SetResults.'</strong>';
}
DB_Insert($SetResults);
}
Hope it works!
I completely agree with the solution from #KemalFadillah for using the implode() method. From your code snippet, I understand that $calculations is the array that stores the main values, i.e. Array(1, 2, 3, 4, 5). So you can do:
$calculations = PerformCalc($min, $highest, $OperatorType);
$s = implode (', ', $calculations);
DB_Insert($s);
I hope that makes sense?
You are executing the last for loop only if $calcSets == 1 and have an $i<$calcSets condition
How about doing it like this
$SetCalc = "";
foreach ($calculations as $key => $DisplayCalcs) {
echo $SetCalc .= $DisplayCalcs.', ';
}
DB_Insert("(".$SetCalc.")");
You're looking for the implode() function to format the numbers.
$formatted = implode(',', $calculations); // Produce 1,2,3,4,etc...
http://php.net/manual/en/function.implode.php
I am trying to get the specific value of file extension in this array. All I can do so far is .
I am wanting the fileextention ".jpg"
All I know how to do is echo the values like so using foreach;
file_nameBob7213.jpg file_typeimage/jpeg
file_pathC:/xampp/htdocs/midas/records/
full_pathC:/xampp/htdocs/midas/records/Bob7213.jpg raw_nameBob7213
orig_nameBob72.jpg client_nameafasfafs.jpg **file_ext.jpg** file_size44.96
is_image1 image_width716 image_height474 image_typejpeg
image_size_strwidth="716" height="474"
I am only interested in retrieving the file_ext from this array. How do I select that exact thing?
foreach ($file['upload_data'] as $item => $value)
{
echo $item; echo $value; echo "<br/>";
}
How do I do this? , thanks!
$file['upload_data']['file_ext']
It's just an array within an array, so specify 2 array keys
Incidentally, if you want to see the contents of an array, a quick way of doing it is to use var_export:
var_export($file); # echoes the entire array
You don't need to write a foreach loop every time
$file['upload_data']['file_ext'] contains '.jpg'.