I'm a begginer in PHP and I want to get data from a form which contains a name,a comment and a name of a photo the user selects, and put it in a csv.But when i try to write the date, the data i already have in the csv is overwrited.So every time I only have one line in my csv with the newest data.
I want data to be introduced in a new csv line everytime the form is used like this:
Russel,Hello,Football.jpg
James,Bye,Coke.png
Instead of being overwrited like this:
James,Bye,Coke,png
This is what i tried:
if (isset($_POST['submit'])) {
$name = $_POST["nom"];
$comment = $_POST['com'];
$image = $_FILES['imag']['name'];
$csvfile = 'fichero.csv';
$fvisitas = fopen($csvfile, "c+");
$lista = array(
array($name, $comment, $image)
);
foreach ($lista as $campos) {
fputcsv($fvisitas, $campos);
}
fclose($fvisitas);
}
You should open your file with the append flag
$fvisitas = fopen($csvfile, "a");
This will let you append lines instead.
You should use a+ mode.
For more about fopen modes refer to fopen
$fvisitas = fopen($csvfile, "a+");
Related
I am trying to replace some hyperlinks in a csv file, like this one:
[https://assets.suredone.com/683987/media-pics/6164307j-gabriel-61643-proguard-steel-shock-absorber-for-select-chevrolet-gmc-models.jpg. Here is my code:][1]. Here is my code:
<?php
$in_file = 'gabriel-images-urls.csv';
$out_file = 'results.csv';
$fd = fopen($in_file, "r");
$new_array= array();
$toBoot= array();
while ($data = fgetcsv($fd)) {
echo '<pre>';
if (strpos($data[2],'media-pics') !== false) {
$data[2]=str_replace('media-pics','media-photos',$data[2]);
fputcsv($fd, $data);
// echo $output;
}
}
?>
The new link for example must look like this:[1]https://assets.suredone.com/683987/media-photos/6164307j-gabriel-61643-proguard-steel-shock-absorber-for-select-chevrolet-gmc-models.jpg. The goal is he "media-pics" substring to be replaced with "media-photos". At this point nothing happens in the file. I think this is because the file is open only for reading but I am not sure.
Can you not simply do a string replacement on the whole file rather than attempting to load and process each line of the file using fgetcsv?
<?php
$srcfile='gabriel-images-urls.csv';
$outfile='results.csv';
$csvdata=file_get_contents( $srcfile );
$moddata=str_replace('media-pics','media-photos',$csvdata);
file_put_contents( $outfile, $moddata );
?>
I'm not able to read a tabulator seperarated csv file (and yes, i know its csv and no tsv and the c is for tabulator...) with php and seperate it right. When i give out my imported Data with echo or readfile all the tabulators are replaced by a space and i can't use space as a sperator.
Actually i'm a bit confused that this problem is not very common when i use Google, so maybe i'm the problem...
The Problem exists with XAMPP v3.2.3 and PHP Version 7.3.5
$tempFile = fopen($tempFilePath, "r");
$uploadData = fread($tempFile, filesize($tempFilePath));
fclose($tempFile);
echo $uploadData;
$uploadData = str_replace('"','',$uploadData);
$uploadData = str_replace('\r\n','\n',$uploadData);
$uploadData = str_replace('\r','\n',$uploadData);
$uploadData = str_replace(';',',',$uploadData);
$uploadData = str_replace('\t',',',$uploadData); //Here i'm trying to replace the tabulator with a colon to work with it afterwards
When reading a CSV file in PHP, it is best to use the fgetcsv function. With it you can specify the deliminator of the file. The function will output a row of the file. Your deliminator should be "\t".
You should use fgetcsv function which already has functionality to read tsv.
Like this:
$uploadData = [];
if (($handle = fopen("test.csv", "r")) !== false) {
while (($data = fgetcsv($handle, 0, "\t")) !== false) {
$uploadData[] = $data;
}
fclose($handle);
}
If you want to convert tsv to csv you can use inverse function fputcsv:
$fh = fopen('file.csv');
foreach ($uploadData as $datum) {
fputcsv($fh, $datum);
}
fclose($fh);
If you want automatically detect csv delimiter maybe this article can help you.
So I have a JSON file containing basketball player information in the following format:
[{"name":"Lamar Patterson","team":1,"yearsLeft":0,"position":"PG","PPG":17},{"name":"Talib Zanna", "team":1,"yearsLeft":0,"position":"SF","PPG":13.1},....]
I want a user to be a able to add their own custom players to this file. To do this i try the following:
<?php
$json = file_get_contents('json/players.json');
$info = json_decode($json, true);
$info[] = array('name'=>$name, 'team'=>$team, 'yearsLeft'=>4, 'position'=>$position, 'PPG'=>$ppg);
file_put_contents('json/players.json', json_encode($info));
?>
This "sort of" works. But when I check the JSON file, I find that there are 3 new entries rather than 1:
{"name":"","team":null,"yearsLeft":4,"position":"","PPG":""},{"name":"","team":"3","yearsLeft":4,"position":"","PPG":""},{"name":"Jeff","team":null,"yearsLeft":4,"position":"C","PPG":"23"}
assuming $name="Jeff" $team=3 and $ppg=23 (populated via POST submission).
What's going on and how can I fix it?
You could try doing the following:
Untested code
<?php
if(!empty($name) && !empty($team) && !empty($position) && !empty($ppg)) {
$fh = fopen('json/players.json', 'r+') or die("can't open file");
$stat = fstat($fh);
ftruncate($fh, $stat['size']-1);//removes last ] char
fclose($fh);
$fh = fopen('json/players.json', 'a');
$info = array('name'=>$name, 'team'=>$team, 'yearsLeft'=>4, 'position'=>$position, 'PPG'=>$ppg);
fwrite($fh, ','.json_encode($info).']');
fclose($fh);
}
?>
This will append the only the new json to the file instead of opening the file, making php parse all the json and then writing it to the file again. In addition to that it will only store the data if the variables actually contain data.
Try this:
<?php
//get the posted values
$name = $_POST['name'];
$team = $_POST['team'];
$position = $_POST['position'];
$ppg = $_POST['ppg'];
//verify they're not empty
if(!empty($name) && !empty($team) && !empty($position) && !empty($ppg)) {
//Open the file
$fh = fopen('json/players.json', 'r+') or die("can't open file");
//get file info/stats
$stat = fstat($fh);
//final desired size after trimming the trailing ']'
$size = $stat['size']-1;
//file has contents? then remove the trailing ']'
if($size>0) ftruncate($fh, $size);
//close the current handle
fclose($fh);
// reopen the file for append
$fh = fopen('json/players.json', 'a');
//build your data array
$info = array('name'=>$name, 'team'=>$team, 'yearsLeft'=>4, 'position'=>$position, 'PPG'=>$ppg);
//if this is not the first item on file
if($size>0) fwrite($fh, ','.json_encode($info).']'); //append with comma
else fwrite($fh, '['.json_encode($info).']'); //first item on file
fclose($fh);
}
?>
Maybe your php config is not set to convert the post/get variables to global variables. This happened to me a couple of times so I rather create the variables I'm expecting from the post/get request. Also watch out for the page encoding, from personal experience you could be getting empty strings there.
I am using the following script to import data into my mysql database from CSV files. The CSV is setup like this :
Name Postcode
fred hd435hg
bob dh345fj
Above is what it looks like in excel, in raw csv format viewed in notepad it looks like this :
name,postcode
frank,ng435tj
The problem I am having is for some reason the postcode column isnt getting imported at all, also the header row is getting imported as a record too, is it possible to make it skip the first row ?. I have been through the code and cant see why the postcode is not being pulled in, it is very odd.
<?php
//database connect info here
//check for file upload
if(isset($_FILES['csv_file']) && is_uploaded_file($_FILES['csv_file']['tmp_name'])){
//upload directory
$upload_dir = "./csv";
//create file name
$file_path = $upload_dir . $_FILES['csv_file']['name'];
//move uploaded file to upload dir
if (!move_uploaded_file($_FILES['csv_file']['tmp_name'], $file_path)) {
//error moving upload file
echo "Error moving file upload";
}
//open the csv file for reading
$handle = fopen($file_path, 'r');
while (($data = fgetcsv($handle, 1000, ',')) !== FALSE) {
//Access field data in $data array ex.
$name = $data[0];
$postcode = $data[1];
//Use data to insert into db
$sql = sprintf("INSERT INTO test (name, postcode) VALUES ('%s',%d)",
mysql_real_escape_string($name),
$postcode
);
mysql_query($sql) or (mysql_query("ROLLBACK") and die(mysql_error() . " - $sql"));
}
//delete csv file
unlink($file_path);
}
?>
Your CSV file seems to be a TSV file actually. It doesn't use commas, but tabulators for separating the fields.
Therefore you need to change the fgetcsv call. Instead of ',' use the tab:
while (($data = fgetcsv($handle, 1000, "\t") ...
And to also skip the header row, add another faux fgetcsv before the while block:
fgetcsv($handle);
while (...) {
That will skip the first line. (A simple fgets would also do.)
Oh, just noticed: The postcode might also get dropped because you concat it into the string as decimal with the sprintf placeholder %d for $postcode. Should that field actually contain lettery, like in your example, then that wouldn't work. -- Though I presume that's just a wrong example printout.
Try this one.
$file = $_FILES['file']['tmp_name'];
$handle = fopen($file,"r");
while(($fileop = fgetcsv($handle,1000,",")) !==false)
{
$username = $fileop[0];
$name = $fileop[1];
$address = $fileop[2];
$sql = mysql_query("INSERT INTO ...... ");
}
I'm trying to open an encrypted file that will store a list of information, then add a new ID with information, and save the file back as it was originally encrypted. I have xor/base64 functions that are working, but I am having trouble getting the file to retain old information.
here is what I am currently using:
$key = 'some key here';
$id = $_GET['id'];
$group = $_GET['group'];
$file = "groups.log";
$fp = fopen($file, "w+");
$fs = file_get_contents($file);
$filedec = xorstr(base64_decode($fs),$key);
$info = "$id: $group";
$filedec = $filedec . "$info\n";
$reencode = base64_encode(xorstr($filedec,$key));
fwrite($fp, $reencode);
fclose($fp);
function xorstr($str, $key) {
$outText = '';
for($i=0;$i<strlen($str);)
{
for($j=0;$j<strlen($key);$j++,$i++)
{
$outText .= $str[$i] ^ $key[$j];
}
}
return $outText;
}
?>
It should save an entire list of the ID's and their corresponding groups, but for some reason it's only showing the last input :(
I wouldn't call this encryption. "cereal box decoder ring", maybe. If you want encryption, then use the mcrypt functions. At best this is obfuscation.
The problem is that you're doing fopen() before doing file_get_contents. Using mode w+ truncates the file to 0-bytes as part of the fopen() call. So by the time file_get_contents comes up, you've deleted the original file.
$fs = file_get_contents(...);
$fh = fopen(..., 'w+');
in that order will fix the problem.