I have this table for insert files data :
|id|url|author|post_id|post_type|timestamp|
In url field i insert PHP serialize data and fetch with this function:
function _is_files_list_($id,$type){
$files = mysqli::fetch("SELECT * FROM " . NEWS_FILES . " WHERE news_id = ? AND type = ? ",$id , $type );
if (count($files) > 0) {
$list_files = unserialize($files[0]['url']);
$count = count($list_files[0]);
for($i=0; $i<$count; $i++){
$files_show[] = array($list_files[0][$i]);
}
return $files_show;
}
else
{
return FALSE;
}
}
and result :
if(($list = _is_files_list_($id,"download")) !== false){
foreach ($list as $key => $data) {
echo urldecode($data[0]);
}
}
This worked for me and print/show url field form table but I need to show other table field ie author or timestamp using this function.
How can I generate this ?
did you tried something like?
foreach ($list as $key => $data) {
echo $data[key]['url'];
echo $data[key]['author'];
echo $data[key]['timestamp '];
}
Related
I managed to add multiple data in one column in the database, but now I need to display it with a new line in the browser so they don't stick with each other as I display them as an array in one column.
Here is my code:
if (isset($_GET['id']) && $_GET['id'] == 5) {
$subArray = array("StudentAnswer");
$subId6 = $db->get("answertable", null, $subArray);
foreach ($subId6 as $sub) {
$answers[] = $sub['StudentAnswer'] . "\n";
}
foreach ($answers as $row) {
$answers2 = explode("||", $row[0]);
foreach($answers2 as $row2){
$answers3 = $row2 . '\n';
}
}
$db->where('AccessId', $_GET['token']);
$db->where('StudentAnswer', $answers3);
$subId8 = $db->get("answertable");
if ($subId8) {
echo json_encode($subId8);
}
}
You are overriding $subId6 after getting its content. Try to fetch the table $rows in a new variable and the extract the content from it, like the code below.
<?php
// Example of $subId6 content
$subId6 = array(["StudentAnswer" => ["Answer 1\nAnswer 2\nAnswer 3"]], ["StudentAnswer" => ["Answer 1\nAnswer 2\nAnswer 3"]]);
// Fetch rows
foreach ($subId6 as $sub) {
$rows[] = $sub['StudentAnswer'];
}
// Decode rows
foreach($rows as $row) {
$answers = explode("\n", $row[0]);
echo "New answers: \n";
// Split answers in single answer
foreach ($answers as $answer)
echo "$answer \n";
echo "\n";
}
You will have a list of all the answers split for table rows
If you want a string of answers seperated by a space then simply do
if (isset($_GET['id']) && $_GET['id'] == 5) {
$subId6 = $db->get("answertable");
foreach ($subId6 as $sub) {
$answers .= $sub['StudentAnswer'] . ' ';
}
$answers= rtrim($answers, ' '); //remove last space in case thats an issue later
$db->where('AccessId', $_GET['token']);
$db->where('StudentAnswer', $answers);
$subId8 = $db->get("answertable");
if ($subId8) {
echo json_encode($subId8);
}
}
I tried comparing 2 text files with data separated by -, in one case one file gets all data and in another case only has the data for change with the same id in this case this file it's called db_tmp.txt
The structure in both files it's this :
File txt ( the first it´s the id ) db/text.txt
1a34-Mark Jhonson
1a56-Jhon Smith
1a78-Mary Walter
The file for comparing, has for example the data for change, same id but different content - db_tmp.txt
1a56-Tom Tom
I created a function for comparing both files to detect if the same id and change exists:
<?php
$cron_file = file("db_tmp.txt");
$cron_compare = file("db/test.txt");
function cron($file_temp, $file_target)
{
for ($fte = 0; $fte < sizeof($file_temp); $fte++) {
$exp_id_tmp = explode("-", $file_temp[$fte]);
$cr_temp[] = "" . $exp_id_tmp[0] . "";
}
for ($ftt = 0; $ftt < sizeof($file_target); $ftt++) {
$exp_id_targ = explode("-", $file_target[$ftt]);
$cr_target[] = "" . $exp_id_targ[0] . "";
}
$diff = array_diff($cr_target, $cr_temp);
$it = 0;
foreach ($diff as $diff2 => $key) {
echo $diff2;
echo "--- $key";
print "<br>";
}
}
cron($cron_file, $cron_compare);
?>
If the same id exists in tmp, i must detect the entry in the other file and change to the value of the tmp, i try but can't get this to work, the function works but not for everything, if anyone can help me, that would be perfect, because i don´t know how continue this and save.
If you want to match according to id, a simple foreach would suffice, then just check during the loop if they have the same key. Consider this example:
// sample data from file('db_text.txt');
$contents_from_text = array('1a34-Mark Jhonson','1a56-Jhon Smith', '1a87-Mary Walter');
// reformat
$text = array();
foreach($contents_from_text as $element) {
list($key, $value) = explode('-', $element);
$text[$key] = $value;
}
$tmp = array();
// sample data from file('db_tmp.txt');
$contents_from_tmp = array('1a56-Tom Tom', '1a32-Magic Johnson', '1a23-Michael Jordan', '1a34-Larry Bird');
foreach($contents_from_tmp as $element) {
list($key, $value) = explode('-', $element);
$tmp[$key] = $value;
}
// compare
foreach($tmp as $key => $value) {
foreach($text as $index => $element) {
if($key == $index) {
$tmp[$key] = $element;
}
}
}
$contents_from_tmp = $tmp;
print_r($contents_from_tmp);
Sample Output
I'm trying to capture a user's checkbox selection from a dynamically generated list of options but I'm getting "Array" instead of the names selected.
In my last test, I checked 2 of the three boxes and got 3 instances of "Array" back.
This is my query that finds the names:
$query = "SELECT id, first_name, last_name
FROM users WHERE location_id = " . $location_id;
$result = mysqli_query($connection, $query);
if (!$result)
{
die("Database query failed: " . mysqli_error($connection));
}
while ($row = mysqli_fetch_array($result))
{
$name = $row['first_name'] . " " . $row['last_name'];
echo '<label><input type="checkbox" name="emp_name[]" id="emp_name[]" value="' . $name . '"> ' . $name . '</label>';
}
I then post the array of names like this:
$attendee = $_POST['emp_name'];
And try to generate the list of names for my email like this:
$values = ('emp_name');
foreach ($values as $value) {
$$value = (array)$_POST[$value];
}
for($i = 0; $i < count($attendee); $i++){
$attendees = array();
foreach ($values as $value) {
$attendees[] = ${$value}[$i];
}
Can someone help me see what's wrong?
I changed my code and included a part of the html that I'm trying to render:
foreach ($attendee as $name) {
$attendees[] = $name;
$htmlBody .= "<tr><td>{$attendees}</td></tr>";
}
But it still returns Array.
Not sure why you do this:
$attendee = (array)$_POST['emp_name'];
Try to replace it with:
$attendee = $_POST['emp_name'];
From your question it's not too clear, but I think you're creating an array within an array,and that that's the issue.
If the above doesn't help, try to var_dump() the variable that gives you "Array" response, and you'll see what's within it.
EDIT: In addition to the change above, try to make this change too:
Replace all this code:
$values = ('emp_name');
foreach ($values as $value) {
$$value = (array)$_POST[$value];
}
for($i = 0; $i < count($attendee); $i++){
$attendees = array();
foreach ($values as $value) {
$attendees[] = ${$value}[$i];
}
with:
foreach ($_POST['emp_name'] as $name) {
$attendees[] = $name;
}
EDIT #2:
According to your code:
foreach ($attendee as $name) {
$attendees[] = $name;
$htmlBody .= "<tr><td>{$attendees}</td></tr>";
}
It's totally normal that you're getting Array instead of a name. See, by writing:
$attendees[] = $name;
you're implying to php that it's an array. On the other hand the foreach loop does the opposite thing, it takes each of the values from $attendee array and makes it available to you as $name variable. So you're basically doing the right thing, and then reverting it back to array for no reason.
SOLUTION:
Replace {$attendees} with {$name}. And it should work.
You can write that with alot less code.
$attendees will now contain your checked checkboxes.
$attendees = array()
foreach($_POST['emp_name'] as $name){
$attendees[] = $name;
}
Based on the code below, how would I create an array and then save the arrays to the database?
<?php
$all_userid = '';
if (isset($_POST['userid'])) {
foreach($_POST['userid'] as $userid) {
// Add filtering here
$all_userid .= $userid;
}
}
echo $all_userid;
?>
Output from echo;
003210032100321
Use json_encode http://www.php.net/json_encode
$string = json_encode($array);
Then when retriving it from database, use json_decode http://php.net/json_decode
<?php
$all_statuses = '';
if (isset($_POST['status'])) {
foreach($_POST['status'] as $status) {
// Add filtering here
$all_statuses .= $status;
}
}
echo($all_statuses);
To Save in database serialize this array
serialize($all_statuses)
?>
you can implode them with an - or / or _ and save them.Like
$i = 0;
$cnt = count($_POST['status']);
foreach($_POST['status'] as $status) {
// Add filtering here
$all_statuses .= $status;
if($i++ < $cnt) {
$all_statuses .= '_';
}
}
echo $all_statuses;
Will gives you like
id1_id2_id3_id4....
And while retriving you simply explode them with the imploded string,you will get all the result in form of an array.
I have a function in the controller that gets a string and then queries the database (via the model) for records that have this string as their name. This works fine with English but I have a problem when the input is in Hebrew. When I echo the string I see something like %D7%91 and the query fails.
All database tables entries are defined as utf8_general_ci.
My controller code:
function get_records_by_name($name)
{
echo 'searching for: '.$name.'</br>';
$keys = new DMkeys() ;
$query = $keys->get_keys();
$arr = array();
$count = 0;
foreach ($query->result() as $row)
{
if(stristr($row->name, $name) != FALSE)
{
$arr[] = $row->name;
$count++;
echo $row->name.'</br>';
}
}
$result = array('count' => $count, 'list' => $arr);
echo json_encode($result) ;
}
My model code:
function get_keys()
{
$query = $this->db->get('keys');
return $query;
}
Thanks,
Simon
You need to decode the variable before using it, try:
$name = urldecode($name);