fwrite

问题 I am trying to write data into an excel file. I execute the code, but when I then try to open the excel file, I am getting an error that states that the format or the extension are not valid. This is my first time working with excel files on PHP. Here is my code: $e = fopen("Test.xlsx", "w"); fwrite($e, $balances['XVG']['onOrder']); fclose($e); Excel 2013 version: Does anyone knows what could be wrong? Thank you. 回答1: You can use PHPExcel: How can i write data into an excel using PHP You can

问题 Sample code: #include <stdio.h> #include <unistd.h> #include <sched.h> #include <pthread.h> int main (int argc, char **argv) { unsigned char buffer[128]; char buf[0x4000]; setvbuf (stdout, buf, _IOFBF, 0x4000); fork (); fork (); pthread_t this_thread = pthread_self (); struct sched_param params; params.sched_priority = sched_get_priority_max (SCHED_RR); pthread_setschedparam (this_thread, SCHED_RR, &params); while (1) { fwrite (&buffer, 128, 1, stdout); } } This program opens 4 threads and

问题 I'm trying to make my PHP script open more than 1 text document and to read them. My current script is as follows: <?php //$searchthis = "ignore this"; $matches = array(); $FileW = fopen('result.txt', 'w'); $handle = @fopen("textfile1.txt", "r"); ini_set('memory_limit', '-1'); if ($handle) { while (!feof($handle)) { $buffer = fgets($handle); if(stripos($buffer, $_POST["search"]) !== FALSE) $matches[] = $buffer; } fwrite($FileW, print_r($matches, TRUE)); fclose($handle); } ?> I'm trying to

问题 I am getting the following from a script I am trying to run: Notice: fwrite() [function.fwrite]: send of 7 bytes failed with errno=1 Operation not permitted in /home/thrawn/public_html/sorcero.us/MinecraftQuery.class.php on line 165 However, when I check phpinfo(), allow_url_fopen is on and Sockets Support is Enabled. I haven't been able to find anything pointing me to what might be causing this. For clarification, I did not write this script. My knowledge of PHP is mostly just the basics,

问题 I have a program that saves many large files >1GB using fwrite It works fine, but unfortunately due to the nature of the data each call to fwrite only writes 1-4bytes. with the result that the write can take over an hour, with most of this time seemingly due to the syscall overhead (or at least in the library function of fwrite). I have a similar problem with fread . Does anyone know of any existing / library functions that will buffer these writes and reads with an inline function, or is

问题 I have never dealt with encoding and decoding strings, so I am quite the newbie on this front. I am receiving a UnicodeEncodeError when I try to write the contents I read from another file to a temporary file using file.write in Python. I get the following error: UnicodeEncodeError: 'ascii' codec can't encode character u'\u201c' in position 41333: ordinal not in range(128) Here is what I am doing in my code. I am reading an XML file and getting the text from the "mydata" tag. I then iterate

问题 I am now doing reading input data from txt file and write the results into txt file. However the results runs in the simulation works well but it fail to link back the the conv module which is o = a+b; the system able to read the values in x.txt and d.txt but cannot link it back to a and b. What is my mistake and how to correct it? And from the same cases in i found out that the system cannot write out negative decimal value although it is change to "%d\n" in $fwrite. Any method to solve that

问题 I need to export data from mysql to a csv file with column heading but i dont have file permission on the server. Is there any otherway to do it? i.e. using php fwrite? or fputcsv? Any help will be much appriciate. Thanks. 回答1: If you can connect to the MySQL server, you can run the mysqldump utility, which is capable of generating CSV files. This is far easier than trying to come up with something yourself. mysqldump --tab --fields-terminated-by="," --host=$SERVER --user=$USERNAME --password

问题 I have the following code to write data to a text file. $somecontent = "data|data1|data2|data3"; $filename = 'test.txt'; // Let's make sure the file exists and is writable first. IF (IS_WRITABLE($filename)) { // In our example we're opening $filename in append mode. // The file pointer is at the bottom of the file hence // that's where $somecontent will go when we fwrite() it. IF (!$handle = FOPEN($filename, 'a')) { PRINT "Cannot open file ($filename)"; EXIT; } // Write $somecontent to our

问题 I want to read the tar file and write it to another tar file using C. The procedure what I m following here is : Creating a tar file of the folder Writing client socket program for reading that tar file as binary file in C using fread function Writing whatever comes in buffer to socket Writing server socket program to receive sent data into a buffer Writing the received buffer into the another tar file. Closing files and socket. Here is code : Server.c #include <stdio.h> #include <stdlib.h>