I have following piece of code in foreach loop.
foreach($_FILES["upload"]["tmp_name"] as $key=>$tmp_name)
{
$guid = (int) get_input('guid');
$file = new FileCreate($guid);
$fileId = $file->guid;
}
What I want to execute is I want to take the value of $fileId every time when foreach executes and stores into a array variable , is it possible to do that ? Or else how we can keep the value of $fileID on first execution of foreach.
You can write something like this:
$myids = array();
foreach($_FILES["upload"]["tmp_name"] as $key=>$tmp_name) {
$guid = (int) get_input('guid');
$file = new FileCreate($guid);
$fileId = $file->guid;
array_push($myids, $fileId);
}
your question is wrong because $_FILES["upload"]["tmp_name"] is not an array and contains a text value. But if you want to have the first element of an array there is no need to do anything special, easily do like this:
foreach($arr as $key=>$val){
...
}
$first_item = $arr[0];
$first_item_id = $arr[0]->id;
Related
This is my current code, I'm looking for a more efficient way of writing it.
Need something like looping through each variable with a foreach or adding them all to an array somehow, without me having to re-write every variable name.
$formValues = $form_state->getValues();
$relocation = $formValues['relocation'];
$europe = $formValues['europe'];
$twoyears = $formValues['twoyears'];
$realestate = $formValues['realestate'];
$nominated = $formValues['check_nominated_by'];
$nom_comp = $formValues['nom_company'];
$nom_contact = $formValues['nom_contact'];
$nom_email = $formValues['nom_email'];
$contact1 = $formValues['contact1'];
$position1 = $formValues['contact_position1'];
$email1 = $formValues['email1'];
$contact2 = $formValues['contact2'];
$position2 = $formValues['contact2'];
$email2 = $formValues['contact2'];
$contact3 = $formValues['contact3'];
$position3 = $formValues['contact3'];
$email3 = $formValues['contact3'];
tempstore = array();
$tempstore['relocation'] = $relocation;
$tempstore['europe'] = $europe;
$tempstore['twoyears'] = $twoyears;
$tempstore['realestate'] = $realestate;
$tempstore['membertype'] = $membertype;
$tempstore['nominated_by'] = '';
// All other fields need to be in this array too
// But there are a lot of unwanted fields in the $formValues
$_SESSION['sessionName']['formName'] = $tempstore;
Seeing as you know the keys you'd like to keep you can do the following:
<?php
/** The keys you want to keep... **/
$keys_to_keep = [
];
/** Will be used to store values for saving to $_SESSION. **/
$temp_array = [];
/** Loop through the keys/values. **/
foreach ($formValues as $key => $value) {
/** The correct key i.e. the key you'd like to save. **/
if (in_array($key, $keys_to_keep)) {
/** What you wish to do... **/
$temp_array[$key] = $value;
}
}
$_SESSION['sessionName']['formName'] = $temp_array;
?>
What is happening is that you are looping through your $formValues and getting both the keys and values of each pair in the array.
Then an check is being done against your $keys_to_keep to see if the current element is the one you wish to keep, if it is then you save it in to $temp_array.
Reading Material
foreach
in_array
You can use variable variables and a foreach.
Foreach($formValues as $key => $var){
$$key = $var;
}
Echo $relocation ."\n" . $europe;
https://3v4l.org/QeLjp
Edit I see now that your array variable keys are not always the same as the variable name you want.
In that case you can't use the method above.
In that case you need to use list() = array.
List($relocation, $europe) = $formValues;
// The list variables have to be in correct order I just took the first two for demo purpose.
Probably a stupid question here, I apologize...
I have a SQL request into a foreach, like below.
The "auth" string is correctly defined, a "echo $auth" returns what I want. But the sql request returns nothing.
// $auth=something;
$val=array(value1,value2,value3);
foreach ($val as $j)
{
$req = mysqli_fetch_array(mysqli_query($link,"select val from user where auth='$auth'"));
$$j=$req[val];
}
My goal is to select the sql fieds contained in the $val array (it perfectly works in others parts of my project). Thanks in advance.
I also tried this, still does not return anything :
$val = array('mail','preferences','info','langue'); // This must be an array
$fields = explode(",", $val);
$req = mysqli_fetch_array(mysqli_query($link,"select $fields from user where auth='$auth'"));
$mail = $req[0]; $preferences = $req[1]; $info = $req[2]; $info = $req[3];
My goal is to select the sql fieds contained in the $val array
So the $val contains the fields you want to use on your query. You can use an explode() to retrieve all the fields without a foreach:
$fields = explode(",", $val);
$req = mysqli_fetch_array(mysqli_query($link,"select $fields from user where auth='$auth'"));
And the you can get the value:
$value1 = $req[$val[0]]; // First field
Okay, let's resume all that. so we have two methods. First :
$val=array(mail,preferences,info,langue);
foreach ($val as $j)
{
$auth = $_SESSION['auth'];
echo $auth; //this works
$req = "select val from user where auth='$auth'";//this works only in phpMyadmin
$req = mysqli_fetch_array(mysqli_query($link,$req));
$$j=$req[val];
}
echo $mail; //gives nothing of course...
And here's the second one :
val = array('mail','preferences','info','langue');
$fields = explode(",", $val);
$req = mysqli_fetch_array(mysqli_query($link,"select $fields from user where auth='$auth'"));
$mail = $req[$val[0]]; $preferences = $req[$val[1]]; $info = $req[$val[2]]; $info = $req[$val[3]];
Still nothing works. No php problem detected, my Mysqli instances work correctly... PLEASE do notice we are in debug mode, so my first code is not optimized of course...
The problem is the use of explode which splits a string on a delimiter and create an array. You already have an array, but you want to make it a string. To do this you can use implode:
$columns = array("mail", "preferences", "info", "language");
$sql = sprintf("SELECT %s FROM user WHERE auth='%s'", implode(",", $columns), $auth);
$query = mysqli_query($sql); //..fetch possible errors
$row = mysqli_fetch_array($query); //..make sure a row was returned
list($mail, $preferences, $info, $language) = $row;
echo $mail;
Hey guys I have a little issue with a function that retrieves data from a MySQL Database and then I iterate over the results with a foreach loop, checking a value to see if it is null and if it is, replacing it with another value.
The problem with this function is this, that after returning the data I'm only able to view one record retrieved from the database. Probably something simple but it's beyond me.
I would like to do this before passing it to the controller or view. Maybe this isn't possible with the foreach loop? What am I missing?
Here is an example of my code.
public function get_basic_user_data(){
$sql = 'SELECT Account.First_Name, Account.Last_Name, Account.User_Name, Profile_Photos.Thumb_Url
FROM Account
LEFT JOIN Profile_Photos ON Account.idAccount = Profile_Photos.Account_Id
AND Profile_Photos.Active = 1
WHERE Account.idAccount != ?';
$account_id = $this->get_account_id();
$data = $this->db->query($sql, $account_id);
foreach($data->result() as $row){
if($row->Thumb_Url == NULL){
$image = base_url().'assets/images/no_photo_thumb.png';
}else{
$image = $row->Thumb_Url;
}
$new_data = new stdClass;
$new_data->First_Name = $row->First_Name;
$new_data->Last_Name = $row->Last_Name;
$new_data->User_Name = $row->User_Name;
$new_data->Thumb_Url = $image;
}
return $new_data;
}
Hopefully someone can help me with this? Thanks!
At the moment you are just returning the last data row. Change your code like this to return an array of all your rows from that function:
$rows = array()
foreach($data->result() as $row){
if($row->Thumb_Url == NULL){
$image = base_url().'assets/images/no_photo_thumb.png';
}else{
$image = $row->Thumb_Url;
}
$new_data = new stdClass;
$new_data->First_Name = $row->First_Name;
$new_data->Last_Name = $row->Last_Name;
$new_data->User_Name = $row->User_Name;
$new_data->Thumb_Url = $image;
$rows[] = $new_data;
}
return $rows;
This way every row returned from the database will be added to an array named $rows. At the end you have to return your new array.
You are overwriting $new_data each iteration. Try this
$new_data = new stdClass
...
$all_data[] = $new_data;
Instead of checking for null value in the code, you could just use a IFNULL statement in the SQL query, this does separate the logic a bit but it might just be worth it in this case.
The function returns only the last row in the result because the new_data variable is overwritten in every step of your loop. Declare new_data an array at the start of your function and add rows as array elements
...
$new_data[] = new stdClass;
...
Each iteration of the foreach overwrites $new_data so in the end when the function returns, only the last fetched row will be returned. To return more than one row you could store all the rows in an array and then return the array in the end. It would look something like this:
public function get_basic_user_data(){
$sql = 'SELECT Account.First_Name, Account.Last_Name, Account.User_Name, Profile_Photos.Thumb_Url
FROM Account
LEFT JOIN Profile_Photos ON Account.idAccount = Profile_Photos.Account_Id
AND Profile_Photos.Active = 1
WHERE Account.idAccount != ?';
$account_id = $this->get_account_id();
$data = $this->db->query($sql, $account_id);
$data = array();
foreach($data->result() as $row){
if($row->Thumb_Url == NULL){
$image = base_url().'assets/images/no_photo_thumb.png';
}else{
$image = $row->Thumb_Url;
}
$new_data = new stdClass;
$new_data->First_Name = $row->First_Name;
$new_data->Last_Name = $row->Last_Name;
$new_data->User_Name = $row->User_Name;
$new_data->Thumb_Url = $image;
$data[] = $new_data;
}
return $data;
}
To be able to use this function you have to change the code that uses it to loop through the array of objects.
I have a variable like this
$profile = $adapter->getProfile();
Now i'm using it like this
$profile->profileurl
$profile->websiteurl
$profile->etc
Now i want to use it in a foreach loop
So i created an array like this
$data = array('profileurl','websiteurl','etc');
foreach ($data as $d ) {
${$d} = ${'profile->'.$d};
}
When I use var_dump(${$d}) I see only NULL instead of values.
Whats wrong?
The following code:
${'profile->'.$d}
Should be changed to:
$profile->{$d};
This will create the variables as expected:
$profile = new stdClass();
$profile->profileurl = "test profileurl";
$profile->websiteurl = "test websiteurl";
$data = array('profileurl', 'websiteurl');
foreach ($data as $d) {
${$d} = $profile->{$d};
}
var_dump($profileurl, $websiteurl);
// string(15) "test profileurl"
// string(15) "test websiteurl"
My guess is that $profile = $adapter->getProfile(); returns an object. And you have fetched data using mysql_fetch_object() so the resulting $profile is an object
When you add the properties in an array you will have to do something like this
$data = array($profile->profileurl, $profile->websiteurl, $profile->etc);
Which will kill the entire idea of doing so. So i'd suggest better try modifying the $adapter->getProfile() method to return an array using mysql_fetch_assoc() which which will return and array and you can iterate it using
foreach($profile as $key => $value){
//whatever you want to do
echo $key . " : " . $value . "<br/>";
}
I don't know exactly why are you approaching foreach. My assumption is, you need
variable like
$profileurl = "something1", $websiteurl="something2" and more.
$profile = $adapter->getProfile();
Now just convert $profile object into Array as follows,
$profileArray = (array)$profile
Then use extract function,
extract($profileArray);
Now you get values in variable as
$profileurl = "something1";
$websiteurl="something2"
Then you can use those as normal php variable.
This is going to be my first time building an associative array. And if anyone can help me I would be grateful.
Basically, I want to loop through a directory of XML files. I want to find out if a certain editor was the editor of this file, and if the query is true, I would like to grab two pieces of information and achieve the result of an associate array with those two pieces of information for every case where the editor's name is found.
So here's what I have got so far:
function getTitleandID($editorName) {
$listofTitlesandIDs = array();
$filename = readDirectory('../editedtranscriptions');
foreach($filename as $file)
{
$xmldoc = simplexml_load_file("../editedtranscriptions/$file");
$xmldoc->registerXPathNamespace("tei", "http://www.tei-c.org/ns/1.0");
if ($editorName == $xmldoc->xpath("//tei:editor[#role='PeerReviewEditor']/text()"))
{
$title = $xmldoc->xpath("//tei:teiHeader/tei:title[1]");
$id = $xmldoc->xpath("//tei:text/tei:body/tei:div/#xml:id[1]");
$listofTitlesandIDs[] = //I don't know what to do here
}
else
{
$listofTitlesandIDs = null;
}
}
return $listofTitlesandIDs
}
This is about where I get stuck. I'd like to be able have $listofTitlesandIDs as an associative array where I could call up the values for two different keys, e.g. $listofTitlesandIDs['title'] and $listofTitlesandIDs[$id]
So that's about it. I'm grateful for any help you have time to provide.
Well I'm sure this is a little clumsy (the result of an amateur) but it has given me the result I want.
function getTitlesandIDs($EditorName) //gets titles and IDs for given author
{
$list = array();
$filename = readDirectory('../editedtranscriptions');
foreach($filename as $file)
{
$xmldoc = simplexml_load_file("../editedtranscriptions/$file");
$xmldoc->registerXPathNamespace("tei", "http://www.tei-c.org/ns/1.0");
$title = $xmldoc->xpath("//tei:teiHeader/tei:fileDesc/tei:titleStmt/tei:title[1]");
$id = $xmldoc->xpath("//tei:text/tei:body/tei:div/#xml:id");
$editorName = $xmldoc->xpath("//tei:editor[#role='PeerReviewEditor']/text()")
if ($editorName[0] == "$EditorName")
{
$result = array("title"=>$title[0], "id"=>$id[0]);
$list[] = $result;
}
}
return $list;
}
With this I can call the function $list = getTitlesandIDs('John Doe') and then access both the title and id in the associative array for each instance. Like so:
foreach ($list as $instance)
{
echo $instance['title'];
echo $instance['id'];
}
Maybe that will help somebody some day -- let me know if you have any advice on making this more elegant.
$listofTitlesandIDs[$id] = $title;
You should loop over the array then using the foreach loop.