I have a .dat file that contains a bunch of text information. What I need to do via php is be able to upload the .dat file to the server which I know how to do already. However once it is uploaded to the server I am not sure how in PHP to open the file and get what ever value is at the 180th position in the file.
The files should all be one row although even if its not I still just need the value from the first row 180th position and take that value and insert it into a mysql database table.
I am looking for any tutorial or documentation on how to do this
Thanks all
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So I have a gaming server that automatically sends the amount of online players to a .php file that updates a .txt file to the current amount of players every minute.
However, when I try to write the contents of the .txt file into my website, it doesn't read the .txt file at all. The .txt just contains 1 number.
Example:
players.txt contains one number, that number is 11 (for players online).
<h5> Come play with <?php echo file_get_contents("players.txt");?> other players</h5>
The outcome is "Come play with other players".
It reads the file but assumes it's empty. Server would throw an error in case file not existed or it couldn't be opened because of permissions or other reasons.
Try this:
1. Echo random string ex. <?php echo '12' ?>
2. Create another file for ex. players1.txt with random number and get it's contents the same way ex. <?php echo file_get_contents('players1.txt'); ?>
I'm not a great web developer but a .txt file shouldn't be this hard to read, especially when it's 1 number.
This is subjective to the fact you know it's a txt file and you know it should contain a number, the issue you're encountering is probably logical rather than subjective. It could be an image file or a .dat file, if a process is writing to the file that file could be locked so other processes can not read the file, or the reader is denied access due to ownership, regardless of the file type or contents.
What does your PHP error log say?
Check the file has the correct group/owner permissions and update them as required.
Have you been clearing your static PHP cache to keep any retrieved values up to date?
Are you writing to the file with correct locking?
Using a Database is far, far more efficient and performant to using a filesystem to track this sort of data.
If you're using Unity be aware that it's local file and online security provisions are absolutely appauling, not saying this is an issue for you specifically, but just as a general proviso, limit accessability as much as possible. Always clean your data.
$valueToPlaceIntoFile = (int)$_POST['playerCounter'];
I am currently working on a web page that should do the following. As a little background, we are working on uploading a bunch of data that has a decent level of user-errors in the cell formatting to a database.
The data is stored in Excel spreadsheets. The spreadsheets are formatted in the same way, (99.9% of the time) but occasionally there are some wonky values within the cells themselves. Here is my goal: I would like the user to be able to
1) Provide the excel file to the page
2) Parse the file with PHP, then send the newly extracted data to a table on the page with editable cells
3) The user can see what came out of their file, then correct it for any slight errors before choosing to send the extracted data to the database.
I can do steps 2 and 3 using PHPExcel with a test file stored on the server, but I am having trouble getting from step 1 to step 2. My vision is to have the user specify the Excel spreadsheet and do the parsing without leaving the current page and losing the data in the fields. I would really like to keep the page from changing, as there are additional text fields on the page and I actually have to parse TWO spreadsheets before the data is taken from all of the fields and sent off to the database.
I guess I'm wondering if there's a way to use a client-provided file in PHP without doing a POST to upload. OR if there's a way to upload the file and have it parsed without leaving the page. I'm new to web development, so excuse me if those last few sentences made absolutely no sense.
Any thoughts?
PHP cannot do a single thing to the file until it is uploaded to the server. You could put a file upload form in an iframe and do some AJAX-y thing as described here.
As for handling PHP file uploads, the docs have a whole section.
We have a local site written in PHP, which contains some data in table format (index.php). It is a dynamically generated data/table, so I'm not able to access the database behind it.
Is there any way I can read the table in that web page, and write it to a text file in the same table format using perl/php/python?
The table is a huge one with around 1000 rows. But I need only the top 10 rows (sorted based on one of the columns).
Please help.
In PHP you can use file_get_contents() function to get the whole html of any page, than you can filter your required content and save it in a text file using fopen() and fwrite().
The server I'm using does not allow me to use LOAD DATA INFILE or even save a file as a .txt file. I have a .csv file that is just one column, with a name in each row. I want to insert this data into the name column of a table named people with name as one column and location as the other… where the locations will be updated at a later time.
It's a weird way to do this. But I need to do it this way and not using those previous commands.
Does anybody have any ideas? This has been giving me a problem for many hours. I can't figure out how to load the csv into my table column without using those previously mentioned methods that I can't use on my server.
Based on your issue and lack of general permissions you will have to do the following:
Replace the DOS carriage returns with unix new lines:
$contents=preg_replace('/(\r\n|\r|\n)/s',"\n",$contents);
Save the contents to the file, and then loop through each line, building an INSERT command that you execute to MySQL.
I have a requirement in which, i need to upload an excel file into SQL Server database. It is working well till this point.
But sometimes i am getting excel file in such a way, that the first 2 rows and columns are empty rows. That is not even fixed every time. so the format of the table after upload is not as expected. It is assigning F1, F2 as column names for the table in SQL Server.
It varies from file to file. I want to program it in such away so that the user can enter the row number and the column number from where the actual data is starting. So that while upload it should from line 3 and column 2.
I don't know how to specify that row and column while uploading.
Please help me to solve the same.
You could use http://phpexcel.codeplex.com/
You can use this to check if and where the data you expect is located in the excel.
If not you could try to find the first column/row with data and work from there.
First of all you can ask your user before starting upload (in form with input type="file") and after user uploads file and you show him an parsed excel data (by your script)..
To more concrete answer you should at least say, by what do you parse excel files and what excel format do you use...