I am trying to fill a array with a csv so each field is separate part of the array, when i have filled the array and echo it out it quite literally says array for every enter.
I have a feeling that once i sort the csvfull array that the sku might need to be in loop inside the main processing loop to.
$ocuk = fopen("ocuk.csv", "r");
while (($result = fgetcsv($ocuk)) !== false)
{
$csvfull[] = $result;
}
print_r ($csvfull[0][1]);
$sku="$csvfull[1]";
while (($csv = fgetcsv($ocuk)) !== FALSE)
{
if (false === empty(array_intersect($sku, $csv)))
{
code to display the results from csv that match the $sku variable
}
}
What i need it to do is csvfull array to fill with the contents of the csv such i can then call it into the variable sku to do comparison in next part of the code.
EDIT example of what i mean
csv example
data,data2,data3,data4 etc
data10,data20,data30,data40 etc
the array would then be like this
$csvfull=array() would contain the below
array("data","data2","data3","data4");
array("data10","data20","data30","data40");
then when i call csvfull[1] it display data2 then would go onto data 20 etc
$csvfull is a 2-dimensional array. The first dimension is the rows of the CSV, the second dimension is the columns. So $csvfull[1] is an array containing all the values from the second line of the file. To get the SKU, you need to drill down to the appropriate column, e.g.
foreach ($csvfull as $row) {
$sku = $row[1];
// Do something with $sku
}
If you want to get an array of all the SKUs, you can do:
$sku = array();
foreach ($csvfull as $row) {
$sku[] = $row[1];
}
try like this:
<?php
$ocuk = fopen('clientes.csv','r');
$i=0;
while(!feof($ocuk)){
$values = fgetcsv($ocuk);
if(empty($values[1] )){ // any index which is not empty to make sure that you are reading valid row.
continue;}
$csvfull[$i] = $values;
$i++;
}
print_r($csvfull);
.
fclose($ocuk);
Related
There is a csv file with data about the weather. I am making something which calculates the mean of a column per station from that csv file. That column is passed in the parameters of the function.
First of all I have this list of id's from the weatherstation. The values I add to the list are arrays which contains the sum and count of a datatype.
$station_id = array("960350", "960870", "961090", "961790", "962210", "962370", "962950", "963230",
"965810", "966330", "966850", "967430", "967470", "967490", "967810",
"968050", "968810", "969330", "969350", "969870", "970140", "970480",
"970720", "971200", "971260", "971460", "971800", "971925", "972300",
"972400", "972600", "973000", "973400", "974280", "974300", "975600",
"977240", "977900", "978100", "979000");
//Every item in the array becomes a key, with an array as a value.
//StationID => [sum, count]
$station_id = array_fill_keys($station_id, []);
The function down here reads the lines of the csv file, adds the value if it is there, adds one to the counter, calculates the mean and prints it per station. Finally it clears the values of the array station_id.
function calc_average($to_be_calc){
global $station_id; //array with station_id's as keys. The value is the sum and the count. (0=sum , 1+count)
global $file; //The csv file.
while (($line = fgetcsv($file)) !== FALSE) {
list($STN, $DATE, $TIME, $TEMP, $DEWP, $STP, $SLP, $VISIB, $WDSP, $PRCP, $SNDP, $FRSHTT, $CLDC, $WNDDIR) = $line;
if (is_numeric($STN)) {
$station_id[$STN][0] += $$to_be_calc; //Sums the values of for example temp
$station_id[$STN][1] += 1; //Adds one to the counter of the station.
}
}
foreach ($station_id as $key => $value) {
if ($value[1] > 0) {
//Calculate average
$average = number_format($value[0] / $value[1], 1, ',', ' ');
//print average per station
echo "Average of station $key: $average</br>";
}
}
foreach ($station_id as $key => $value){
unset($key);
}
}
The problem I have now is that when I call it like this:
calc_average("TEMP");
echo "<br>";
calc_average("CLDC");
It prints the averages of the temperature per station twice. Instead of first TEMP, then CLDC. Like this. If I first call calc_average with CLDC as parameter it only does with CLDC.
I have no idea how this is possible. Therefore, my question is how to fix this.
SOLUTION
I didn't rewind the pointer at the end of my function. All I had to do was add rewind($file); to my function. I works great now. Thanks
Placing my answer from the comments in an actual answer:
I am assuming $file is a file pointer obtained using something like fopen(). If so, are you resetting the pointer back to the beginning of the file? If not, $line = fgetcsv($file) will always return false at the start of the second calc_average() call.
I'm trying to pull information from a .CSV file to process with PHP into a local database.
I have the following code:
<?
$csv = array_map('str_getcsv', file('red.csv'));
echo $csv[1];
?>
The first bit works, if I try to echo the array_map with print_r or var_dump - but I'm not sure how to process it this way.
I'm used to being able to loop through with a for loop where $csv is an array and [0] is the record - but right now the only thing being ECHO'd is Array
I've never worked with array_map's before - and I found the code I am using (Except for the echo obviously) elsewhere online.
How can I loop through the entire array to process each record individually?
The reason Array is being echoed is because str_getcsv returns an array. So $csv is an array with each element inside it being an array of the csv values. If you change it to
<?php
$csv = array_map('str_getcsv', file('red.csv'));
print_r($csv[0]);
?>
You will be able to see the line as an array of each csv item.
You can loop through csv with this:
if (($handle = fopen("your.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, null, ";", '"')) !== FALSE) {
// $data is an array that contains the current row
}
}
note: change the delimiter and escape characters in fgetcsv() according to your csv.
You can travel/iterate over the CSV array using this structure:
foreach( $csv as $row_id => $row_data ) {
foreach( $row_data as $cell_id => $cell_data ) {
// The next will output the same data
echo $cell_data . '\n';
echo $csv[$row_id][$cell_id] . '\n';
}
}
Please follow below code for getting data from csv, looping through each row.
<?php
$csv = array_map('str_getcsv', file('red.csv'));
//print_r($csv[0]);
foreach($csv as $key=>$v)
{
echo $csv[$key][0];//column A/0
echo $csv[$key][1];//column B/1
}
?>
my question has to do with PHP and XML. I would like to echo out some attributes, but echo ones that repeat only once.
Say this was the XML I was dealing with, and it was called beatles.xml:
<XML_DATA item=“TheBeatles”>
<Beatles>
<Beatle Firstname=“George” Lastname=“Harrison” Instrument=“Guitar”>Harrison, George</Beatle>
<Beatle Firstname=“John” Lastname=“Lennon” Instrument=“Guitar”>Lennon, John</Beatle>
<Beatle Firstname=“Paul” Lastname=“McCartney” Instrument=“Bass”>McCartney, Paul</Beatle>
<Beatle Firstname=“Ringo” Lastname=“Starr” Instrument=“Drums”>Starr, Ringo</Beatle>
</Beatles>
</XML_DATA>
This is the PHP I have so far:
$xml = simplexml_load_file("http://www.example.com/beatles.xml");
$beatles = $xml->Beatles->Beatle;
foreach($beatles as $beatle) {
echo $beatle->attributes()->Instrument.',';
}
I would expect this to echo out Guitar,Guitar,Bass,Drums, but I would like Guitar to only display once. How would I prevent repeat attribute values from echoing out?
Inside the foreach loop, cast the instrument name as a string and push it into an array. Once the loop finishes execution, you will have an array containing all the instrument names (with duplicates, of course). You can now use array_unique() to filter out the duplicate values from the array:
$instruments = array();
foreach($beatles as $beatle) {
$instruments[] = (string) $beatle->attributes()->Instrument;
}
$instruments = array_unique($instruments);
Demo.
$xml = simplexml_load_file("http://www.example.com/beatles.xml");
$beatles = $xml->Beatles->Beatle;
$result = array();
foreach($beatles as $beatle) {
if (!array_key_exists($beatle->attributes()->Instrument, $result)) {
$result[] = $beatle->attributes()->Instrument;
// echo $beatle->attributes()->Instrument.',';
}
}
then Loop through the $result array with foreach
Either use xpath.
I am new in PHP and I have little problem. I have code like this:
$file = $_FILES['sel_file']['name'];
$chk_ext = explode(".",$file);
if(strtolower($chk_ext[1]) == "txt")
{
$filename = $_FILES['sel_file']['tmp_name'];
$handle = fopen($filename, "r");
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
{
$array = array( $data[0]);
foreach( $array as $value )
{
$number=$value;
}
$obj=new Sender("$number");
}
header("location:bulk.php?msg=send");
}
else
{
header("location:bulk.php?invalid=file");
exit();
}
$obj->Submit ();
Problem is that only last value comes out from text file in $obj=new Sender("$number");, please help me out.
fgetcsv() already return an array so: $array = array( $data[0]); just means that you only retrieve the first element of the array of fields which is $data.
In the foreach loop you should just replace the $array variable with $data.
The loop woould then look like this:
foreach( $data as $value )
{
$number=$value;
}
$obj=new Sender("$number");
means that for every element in $data, you hold it inside $number, loops again and put it again in $number overwriting it.
After the foreach loop the value of $number would be the last field of the row.
You should just put the line $obj=new Sender("$number"); inside the loop, so that every element of every row would be put in Sender.
No surprise. You loop over all the values, continually overwriting $number with the most recently retrieved value. When the loop exits, you end up with only the last one.
Probably you want something more like:
foreach($array as $value) {
$obj = new Sender($value);
}
your code also makes very little sense. You take an uploaded file, presumably CSV, read a line from it, extract the FIRSt value from that line. force the value into an array, then read back that ONE value in the array (the ONLY value in the array), and do something with it.
Even if your foreach wasn't overwriting the value, you still only have one single value to loop on anyways.
You are overwriting the contents of number each iteration. You can instead make number an array which stores each value at incrementing elements.
foreach( $array as $value )
{
$number[]=$value;
}
$obj=new Sender($number);
That's because you assign a new value to $number in each iteration. Either you need to append to that variable ($number .= $value) or you need to add it to an array ($number[] = $value).
I have created an array list with the following code:
<?php
$ids = array();
if (mysql_num_rows($query1))
{
while ($result = mysql_fetch_assoc($query1))
{
$ids["{$result['user_id']}"] = $result;
}
}
mysql_free_result($query1);
?>
Now, i need to read two elements from the array. The first is the current and the second one is the next element of array. So, the simplified process is the following:
i=0: current_element (pos:0), next_element (pos:1)
i=1: current_element (pos:1), next_element (pos:2)
etc
To do this, i have already written the following code, but i cant get the next element for each loop!
Here is the code:
if (count($ids))
{
foreach ($ids AS $id => $data)
{
$userA=$data['user_id'];
$userB=next($data['user_id']);
}
}
The message i receive is: Warning: next() expects parameter 1 to be array, string given in array.php on line X
Does anyone can help? Maybe i try to do it wrongly.
The current, next, prev, end functions work with the array itself and place a position mark on the array. If you want to use the next function, perhaps this is the code:
if (is_array($ids))
{
while(next($ids) !== FALSE) // make sure you still got a next element
{
prev($ids); // move flag back because invoking 'next()' above moved the flag forward
$userA = current($ids); // store the current element
next($ids); // move flag to next element
$userB = current($ids); // store the current element
echo(' userA='.$userA['user_id']);
echo('; userB='.$userB['user_id']);
echo("<br/>");
}
}
You'll get this text on the screen:
userA=1; userB=2
userA=2; userB=3
userA=3; userB=4
userA=4; userB=5
userA=5; userB=6
userA=6; userB=7
userA=7; userB=8
You get the first item, then loop over the rest and at the end of each loop you move the current item as the next first item ... the code should explain it better:
if (false !== ($userA = current($ids))) {
while (false !== ($userB = next($ids))) {
// do stuff with $userA['user_id'] and $userB['user_id']
$userA = $userB;
}
}
Previous answer
You can chunk the arrays into pairs:
foreach (array_chunk($ids, 2) as $pair) {
$userA = $pair[0]['user_id']
$userB = $pair[1]['user_id']; // may not exist if $ids size is uneven
}
See also: array_chunk()