I am trying to do a mysql fetch but it keeps adding numbered and labeled keys to the array. I want it to record only the labeled names and data in the array.
Am I using the wrong mysql call?
global $con,$mysqldb;
$sql="SHOW FIELDS FROM ".$dbtable;
$tr = mysqli_query($con,$sql);
$tl = mysqli_fetch_array($tr);
$tl = mysqli_fetch_array($tr);
$sql="SELECT * FROM ".$mysqldb.".".$dbtable." ORDER BY ".$tl['Field']." LIMIT 3";
$result = mysqli_query($con,$sql);
while($row = mysqli_fetch_array($result)) {
$table[$row[1]] = $row;
}
foreach($table as $item => $data){
foreach(array_keys($data) as $pointer => $field) {
echo"pointer=".$pointer."\t";
echo"field=".$field."\n";
echo "data=".$data[$field]."\n";
}
}
reults
pointer=0 field=0 data=3823
pointer=1 field=PID data=3823
pointer=2 field=1 data=AA
pointer=3 field=symbol data=AA
pointer=4 field=2 data=1
pointer=5 field=value data=1
I want to omit 0, 2, & 4 from the array.
Take a look at the PHP.net manual for the mysqli_fetch_array() function.
You'll see there's an option called resulttype that will accept 1 of 3 values - MYSQLI_ASSOC, MYSQLI_NUM, or MYSQLI_BOTH the default.
Using MYSQLI_ASSOC will remove the numbered keys.
Or check mysqli_fetch_assoc().
Thanks to thebluefox for a speedy response.
I replaced the fetch with:
while($row = $result->fetch_array(MYSQLI_ASSOC)) {
And now the results are being recorded as they should.
Related
I am trying to return a json from a MySQL query to use it with xCode but I cannot get an array of several objects with multiple fields. I have read the documentation on php.net and over here, but I still can't get it.
1) Let's say I have a MySQL table with 3 rows (for example 3 people). Each row contains 3 fields (lastname, firstname, dateOfBirth):
$result = mysqli_query($mysqli, $sql) // where $sql = "SELECT * FROM tbl_syncList"
$resultArray = array();
while ($row = $result->fetch_array()) {
$resultArray[] = $row["lastname"];
}
echo json_encode($resultArray); // --> return "["Lastname1", "Lastname2"...] - that's okay, I understand I return the value of the key "lastname"
I don't know how to get an array with the entire rows (all the fields at once), like:
[["Firstname1", "Lastname1", "dateOfBirth1"], ["Firstname2", "Lastname2", "dateOfBirth2"],...]
I tried to replace
$resultArray[] = $row["lastname"];
with:
$resultArray[] = $row;
but it just gives the world...
"array"
...with no content. Does anyone have an idea?
Thanks a lot!
Are you sure the array is properly populated to begin with? print_r($resultArray) and see what you have there with = $row (which is correct).
i have a mysql table the contains an index id, a data entry and 10 other columns called peso1, peso2, peso3...peso10. im trying to get the last 7 peso1 values for a specific id.
like:
$sql = mysql_query("SELECT * FROM table WHERE id='$id_a' ORDER BY data DESC LIMIT 0, 7");
when i try to fetch those values with mysql_fetch_array, i get all values together.
example:
while($line = mysql_fetch_array($sql)) {
echo $line['peso1'];
}
i get all peso1 values from all 7 days together. How can i get it separated?
They will appear all together because you are not separating them as you loop through them.
for example, insert a line break and you will see them on separate lines
while($line = mysql_fetch_array($sql)) {
echo $line['peso1'] ."<br />";
}
You could key it as an array like so
$myArray = array();
$i = 1;
while($line = mysql_fetch_array($sql)) {
$myArray['day'.$i] = $line['peso1'];
$i++;
}
Example use
$myArray['day1'] // returns day one value
$myArray['day2'] // returns day two value
It's not clear what you mean by "separated" so I'm going to assume you want the values as an array. Simply push each row field that you want within your while loop onto an array like this:
$arr = array();
while($line = mysql_fetch_array($sql)) {
$arr[]=$line['peso1'];
}
print_r($arr);//will show your peso1 values as individual array elements
Using select query am select some data from database.
i fetched data using while loop.
while($row=mysql_fetch_array($query1))
{
}
now i want to print only index of $row.
i tried to print using following statements but it prints index and value(Key==>Value)
foreach ($row as $key => $value) {
echo $key ;
}
and i tried array_keys() also bt it is also not helpful to me.
echo implode(array_keys($row));
please help to get out this.
i need to print only index.
You are fetching the results row as both associative array and a numeric array (the default), see the manual on mysql_fetch_array.
If you need just the numeric array, use:
while($row=mysql_fetch_array($query1, MYSQL_NUM))
By the way, you should switch to PDO or mysqli as the mysql_* functions are deprecated.
You should pass separator(glue text) in Implode function.
For comma separated array keys, you can use below code.
echo implode(",",array_keys($row));
The $row variable in your while loop gets overwritten on each iteration, so the foreach won't work as you expect it to.
Store each $row in an array, like so:
$arr = array();
while($row=mysql_fetch_array($query1)) {
$arr[] = $row;
}
Now, to print the array keys, you can use a simple implode():
echo implode(', ', array_keys($arr));
$query1 from while($row=mysql_fetch_array($query1)) should be the result from
$query1 = mysql_result("SELECT * FROM table");
//then
while($row=mysql_fetch_array($query1))
To get only the keys use mysql_fetch_row
$query = "SELECT fields FROM table";
$result = mysql_query($query);
while ($row = mysql_fetch_row($result)) {
print_r(array_keys($row));
}
How can i get every row of a mysql table and put it in a php array? Do i need a multidimensional array for this? The purpose of all this is to display some points on a google map later on.
You need to get all the data that you want from the table. Something like this would work:
$SQLCommand = "SELECT someFieldName FROM yourTableName";
This line goes into your table and gets the data in 'someFieldName' from your table. You can add more field names where 'someFieldName' if you want to get more than one column.
$result = mysql_query($SQLCommand); // This line executes the MySQL query that you typed above
$yourArray = array(); // make a new array to hold all your data
$index = 0;
while($row = mysql_fetch_assoc($result)){ // loop to store the data in an associative array.
$yourArray[$index] = $row;
$index++;
}
The above loop goes through each row and stores it as an element in the new array you had made. Then you can do whatever you want with that info, like print it out to the screen:
echo $row[theRowYouWant][someFieldName];
So if $theRowYouWant is equal to 4, it would be the data(in this case, 'someFieldName') from the 5th row(remember, rows start at 0!).
$sql = "SELECT field1, field2, field3, .... FROM sometable";
$result = mysql_query($sql) or die(mysql_error());
$array = array();
while($row = mysql_fetch_assoc($result)) {
$array[] = $row;
}
echo $array[1]['field2']; // display field2 value from 2nd row of result set.
The other answers do work - however OP asked for all rows and if ALL fields are wanted as well it would much nicer to leave it generic instead of having to update the php when the database changes
$query="SELECT * FROM table_name";
Also to this point returning the data can be left generic too - I really like the JSON format as it will dynamically update, and can be easily extracted from any source.
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
echo json_encode($row);
}
You can do it without a loop. Just use the fetch_all command
$sql = 'SELECT someFieldName FROM yourTableName';
$result = $db->query($sql);
$allRows = $result->fetch_all();
HERE IS YOUR CODE, USE IT. IT IS TESTED.
$select=" YOUR SQL QUERY GOOES HERE";
$queryResult= mysql_query($select);
//DECLARE YOUR ARRAY WHERE YOU WILL KEEP YOUR RECORD SETS
$data_array=array();
//STORE ALL THE RECORD SETS IN THAT ARRAY
while ($row = mysql_fetch_array($queryResult, MYSQL_ASSOC))
{
array_push($data_array,$row);
}
mysql_free_result($queryResult);
//TEST TO SEE THE RESULT OF THE ARRAY
echo '<pre>';
print_r($data_array);
echo '</pre>';
THANKS
I currently have a database like the picture below.
Where there is a query that selects the rows with number1 equaling 1. When using
mysql_fetch_assoc()
in php I am only given the first is there any way to get the second? Like through a dimesional array like
array['number2'][2]
or something similar
Use repeated calls to mysql_fetch_assoc. It's documented right in the PHP manual.
http://php.net/manual/function.mysql-fetch-assoc.php
// While a row of data exists, put that row in $row as an associative array
// Note: If you're expecting just one row, no need to use a loop
// Note: If you put extract($row); inside the following loop, you'll
// then create $userid, $fullname, and $userstatus
while ($row = mysql_fetch_assoc($result)) {
echo $row["userid"];
echo $row["fullname"];
echo $row["userstatus"];
}
If you need to, you can use this to build up a multidimensional array for consumption in other parts of your script.
$Query="select SubCode,SubLongName from subjects where sem=1";
$Subject=mysqli_query($con,$Query);
$i=-1;
while($row = mysqli_fetch_array($Subject))
{
$i++;
$SubjectCode[$i]['SubCode']=$row['SubCode'];
$SubjectCode[$i]['SubLongName']=$row['SubLongName'];
}
Here the while loop will fetch each row.All the columns of the row will be stored in $row variable(array),but when the next iteration happens it will be lost.So we copy the contents of array $row into a multidimensional array called $SubjectCode.contents of each row will be stored in first index of that array.This can be later reused in our script.
(I 'am new to PHP,so if anybody came across this who knows a better way please mention it along with a comment with my name so that I can learn new.)
This is another easy way
$sql_shakil ="SELECT app_id, doctor_id FROM patients WHERE doctor_id = 201 ORDER BY ABS(app_id) ASC";
if ($result = $con->query($sql_shakil)) {
while ($row = $result->fetch_assoc()) {
printf ("%s (%s)\n", $row["app_id"], $row["doctor_id"]);
}
Demo Link
It looks like the complete solution has not been suggested yet
$Query="select SubCode,SubLongName from subjects where sem=1";
$Subject=mysqli_query($con,$Query);
$Rows = array ();
while($row = mysqli_fetch_array($Subject))
{
$Rows [] = $row;
}
The $Rows [] = $row appends the row to the array. The result is a multidimensional array of all rows.