i want get data from stdclass object. i use foreach method to get key and value.
with var_dump i can get all infromation about the post, buy i want extract all 'display'.
foreach($data as $key=>$value){
var_dump($value);
}
var_dump result :
i just want extract all display_ur property. can anyone exlain me ?
do like below:-
foreach($data as $key=>$value){
foreach($value as $val){
echo $val->node->display_url;
echo PHP_EOL;
}
}
Your original array is made out of stdClassObjects. Each of these class objects has a public property called node that is also a stdClassObject.
That means that if you want to retrieve the display_url for each of these objects, you need:
foreach ($array as $object) {
$node = $object->node;
var_dump($node->display_url); // this should return what you are looking for
}
$value->display_url. I think this will work for you.
With type cast
$array=(object) $stdClassObject;
foreach($array as $key=>$value){
var_dump($value);
}
I have the following array that is in PHP (this is a print_r() output).
I'm currently struggling to loop through this data - need to be able to process each part and access the values in each array item. How can I do this.
I've tried the following unsuccessfully...
foreach (array as $key => $value) {
echo $key;
}
Try this. Since you have an array of objects, you should be able to access each object property using ->
foreach($array as $value) {
echo $value -> userid;
}
It should echo out all the user id in that array of objects
You have an array of objects, so try something like this:
<?php
foreach ($array as $value) {
echo $value->userid;
echo $value->action;
echo $value->photo_name;
}
You don't need the $key since you're not using it in the loop. Each iteration will put the object in the $value variable, on which you can access it's properties.
I have the following snippet of code that is creating the following array...
while ($stmt->fetch()) {
foreach($row as $key => $val) {
$x[$key] = $val;
}
$results[] = $x;
}
Results in the follow array:
Array ( [0] => Array ( [cap_login] => master [cap_pword] => B-a411dc195b1f04e638565e5479b1880956011badb73361ca ) )
Basically I want to extract the cap_login and cap_pword values for testing. For some reason I can't get it!
I've tried this kind of thing:
echo $results[$cap_login];
but I get the error
Undefined variable: cap_login
Can someone put me right here?
Thanks.
cap_login is in an array within $results so you would have to do $results[0]['cap_login']
You would have to do the following:
echo $x[0]['cap_login'] . '<br />';
echo $x[0]['cap_pword'];
The reson $results[$cap_login] wont work is because there isn't a variable called $cap_login, there is a string called cap login. In addition, there isn't a key in $results called $cap_login. There is a value in $results called 'cap_login'
Struggling with this problem for an hour now and searched both stackoverflow and google and couldn't find an answer that helped. I have the following from xdebug:
- list (array)
-[0] (object)
---id (string)
---proj_name (string)
---proj_desc (string)
I am trying to pull out the value of id. Can anyone tell me how to do this? Thank you.
$list[0]->id
$list is an array containing an object at position 0, therefore this object can be accessed with $list[0]
the object has a property named id, which can be accessed with $object->id
If you have more than one object in the array, then you can loop through the values contained in the array with foreach. For example:
foreach ($list as $object) {
echo $object->id . "<br/>";
}
This will take each object in the array and display its id value.
Use foreach to loop through the list:
foreach($list as $obj) // Where $list is the list containing the objects
{
$id = $obj->id;
}
I'm developing a php app that uses a database class to query MySQL.
The class is here: http://net.tutsplus.com/tutorials/php/real-world-oop-with-php-and-mysql/*note there are multiple bad practices demonstrated in the tutorial -- it should not be used as a modern guide!
I made some tweaks on the class to fit my needs, but there is a problem (maybe a stupid one).
When using select() it returns a multidimensional array that has rows with 3 associative columns (id, firstname, lastname):
Array
(
[0] => Array
(
[id] => 1
[firstname] => Firstname one
[lastname] => Lastname one
)
[1] => Array
(
[id] => 2
[firstname] => Firstname two
[lastname] => Lastname two
)
[2] => Array
(
[id] => 3
[firstname] => Firstname three
[lastname] => Lastname three
)
)
Now I want this array to be used as a mysql result (mysql_fetch_assoc()).
I know that it may be used with foreach(), but this is with simple/flat arrays. I think that I have to redeclare a new foreach() within each foreach(), but I think this could slow down or cause some higher server load.
So how to apply foreach() with this multidimensional array the simplest way?
You can use foreach here just fine.
foreach ($rows as $row) {
echo $row['id'];
echo $row['firstname'];
echo $row['lastname'];
}
I think you are used to accessing the data with numerical indices (such as $row[0]), but this is not necessary. We can use associative arrays to get the data we're after.
You can use array_walk_recursive:
array_walk_recursive($array, function ($item, $key) {
echo "$key holds $item\n";
});
With arrays in php, the foreach loop is always a pretty solution.
In this case it could be for example:
foreach($my_array as $number => $number_array)
{
foreach($number_array as $data = > $user_data)
{
print "Array number: $number, contains $data with $user_data. <br>";
}
}
This would have been a comment under Brad's answer, but I don't have a high enough reputation.
Recently I found that I needed the key of the multidimensional array too, i.e., it wasn't just an index for the array, in the foreach loop.
In order to achieve that, you could use something very similar to the accepted answer, but instead split the key and value as follows
foreach ($mda as $mdaKey => $mdaData) {
echo $mdaKey . ": " . $mdaData["value"];
}
Hope that helps someone.
Holla/Hello,
I got it! You can easily get the file name,tmp_name,file_size etc.So I will show you how to get file name with a line of code.
for ($i = 0 ; $i < count($files['name']); $i++) {
echo $files['name'][$i].'<br/>';
}
It is tested on my PC.
To get detail out of each value in a multidimensional array is quite straightforward once you have your array in place. So this is the array:
$example_array = array(
array('1','John','Smith'),
array('2','Dave','Jones'),
array('3','Bob','Williams')
);
Then use a foreach loop and have the array ran through like this:
foreach ($example_array as $value) {
echo $value[0]; //this will echo 1 on first cycle, 2 on second etc....
echo $value[1]; //this will echo John on first cycle, Dave on second etc....
echo $value[2]; //this will echo Smith on first cycle, Jones on second etc....
}
You can echo whatever you like around it to, so to echo into a table:
echo "<table>"
foreach ($example_array as $value) {
echo "<tr><td>" . $value[0] . "</td>";
echo "<td>" . $value[1] . "</td>";
echo "<td>" . $value[2] . "</td></tr>";
}
echo "</table>";
Should give you a table like this:
|1|John|Smith |
|2|Dave|Jones |
|3|Bob |Williams|
Example with mysql_fetch_assoc():
while ($row = mysql_fetch_assoc($result))
{
/* ... your stuff ...*/
}
In your case with foreach, with the $result array you get from select():
foreach ($result as $row)
{
/* ... your stuff ...*/
}
It's much like the same, with proper iteration.
Ideally a multidimensional array is usually an array of arrays so i figured declare an empty array, then create key and value pairs from the db result in a separate array, finally push each array created on iteration into the outer array. you can return the outer array in case this is a separate function call. Hope that helps
$response = array();
foreach ($res as $result) {
$elements = array("firstname" => $result[0], "subject_name" => $result[1]);
array_push($response, $elements);
}
I know this is quite an old answer.
Here is a faster solution without using foreach:
Use array_column
print_r(array_column($array, 'firstname')); #returns the value associated with that key 'firstname'
Also you can check before executing the above operation
if(array_key_exists('firstname', $array)){
print_r(array_column($array, 'firstname'));
}
Wouldn't a normal foreach basically yield the same result as a mysql_fetch_assoc in your case?
when using foreach on that array, you would get an array containing those three keys: 'id','firstname' and 'lastname'.
That should be the same as mysql_fetch_assoc would give (in a loop) for each row.
foreach ($parsed as $key=> $poke)
{
$insert = mysql_query("insert into soal
(pertanyaan, a, b, c, d, e, jawaban)
values
('$poke[question]',
'$poke[options][A]',
'$poke[options][B]',
'$poke[options][C]',
'$poke[options][D]',
'$poke[options][E]',
'$poke[answer]')");
}
If you need to do string manipulation on array elements, e.g, then using callback function array_walk_recursive (or even array_walk) works well. Both come in handy when dynamically writing SQL statements.
In this usage, I have this array with each element needing an appended comma and newline.
$some_array = [];
data in $some_array
0: "Some string in an array"
1: "Another string in an array"
Per php.net
If callback needs to be working with the actual values of the array,
specify the first parameter of callback as a reference. Then, any
changes made to those elements will be made in the original array
itself.
array_walk_recursive($some_array, function (&$value, $key) {
$value .= ",\n";
});
Result:
"Some string in an array,\n"
"Another string in an array,\n"
Here's the same concept using array_walk to prepend the database table name to the field.
$fields = [];
data in $fields:
0: "FirstName"
1: "LastName"
$tbl = "Employees"
array_walk($fields, 'prefixOnArray', $tbl.".");
function prefixOnArray(&$value, $key, $prefix) {
$value = $prefix.$value;
}
Result:
"Employees.FirstName"
"Employees.LastName"
I would be curious to know if performance is at issue over foreach, but for an array with a handful of elements, IMHO, it's hardly worth considering.
A mysql result set object is immediately iterable within a foreach(). This means that it is not necessary to call any kind of fetch*() function/method to access the row data in php. You can simply pass the result set object as the input value of the foreach().
Also, from PHP7.1, "array destructuring" allows you to create individual values (if desirable) within the foreach() declaration.
Non-exhaustive list of examples that all produce the same output: (PHPize Sandbox)
foreach ($mysqli->query("SELECT id, firstname, lastname FROM your_table") as $row) {
vprintf('%d: %s %s', $row);
}
foreach ($mysqli->query("SELECT * FROM your_table") as ['id' => $id, 'firstname' => $firstName, 'lastname' => $lastName]) {
printf('%d: %s %s', $id, $firstName, $lastName);
}
*note that you do not need to list all columns while destructuring -- only what you intend to access
$result = $mysqli->query("SELECT * FROM your_table");
foreach ($result as $row) {
echo "$row['id']: $row['firstname'] $row['lastname']";
}