This article mainly introduces the summary of functions related to PHP file read/write operations. This article summarizes fwrite (), fread (), fgets (), fgetc (), file (), readfile () for more information about functions and examples, see
I. fwrite
This article collects 10 articles about PHP fputs () functions recommended for everyone to watch
1. ThinkPad Tablet 2 PHP stealth a word back door, and thinkphp framework plus password program Base64_decode
Brief: ThinkPad Tablet 2:thinkpad tablet 2
The following text: This article mainly introduces the PHP file read and write operation related function Summary, this article summarizes fwrite (), Fread (), fgets (), fgetc (), file (), ReadFile () and other functions of the introduction and use
This article describes the following several commonly used file operation functions file_get_contents read the entire file contents fopen Create and open files Fclose close the file fgets read the file one line of content file_exists check whether
Fread: Calculates the length in bytes, reads the data according to the specified length and number of times, and stops after the end is encountered or the specified length is completed.
Fgets: Full line read, encountered carriage return newline or
Fread: calculates the length in bytes and reads data according to the specified length and number of times. It stops reading data at the end or after the specified length is completed.
Fgets: Read the entire line. If a carriage return returns a line
Linux input and output files, Linux input and output files1. File Operations (buffering) based on file pointers)
In linux, operations on directories and devices are file operations. files are classified into common files, directory files, link files,
In C language has been very easy to confuse, get and fgets the difference:char * fgets (char * str, int num, FILE * stream);Reads characters from stream and stores them as a C string to str until (num-1) characters ha ve been read or either a
How PHP reads files
The file_get_contents () function reads the entire file into a string.
Example
The code is as follows
Copy Code
Echo file_get_contents ("test.txt");?>
Output:
This was a test file with
Fread: Computes the length in byte bits, reads the data at the specified length and number, stops after it encounters the end or completes the specified length read.
Fgets: Full row reads, encounters carriage return or end stop. Used in text
Write a complete program, that would correctly decode a set of characters into a valid message. Your program should read a given file of a simple coded set of characters and print the exact message that the characters Contain. The code key for this
Author: Armel Fauveau
Original address: Http://www.phpbuilder.net/columns/armel20010427.php3
PHP can open a remote or local server sockets! Here is a simple example of using sockets: Connect to a Usenet news server, communicate with the server, and
The first of these methodsIdea: Read the characters in a file one by one and compare it to \ n.
Copy Code code as follows:
#include
#include
#include
int main (int argc, char *argv[])
{
FILE *FP;
int n = 0;
int ch;
if
1. Read-write character function putc () and getc ()
These two functions are similar to the Putchar () and the GetChar () functions. Assuming FP is a file pointer, ch is a character variable,
ch = getc(fp);// ch = getchar(); putc(ch,fp);// putchar(
1. File Operation 1.1 Open close file
fopen ()resource fopen ( string filename, string mode [, bool use_include_path [, resource zcontext]] )?The fopen () function binds resource to a stream or handle. After the binding. The script is able
1. File Operations (buffering) based on file pointers)In Linux, most resources can be processed as files. Common file types include: l common files l unknown pipelines and named pipelines l directory l device l symbols connect l socket common files:
Example code 1: Use file_get_contents to get content in get ModeCopy codeThe Code is as follows:$ Url = 'HTTP: // www.baidu.com /';$ Html = file_get_contents ($ url );// Print_r ($ http_response_header );Ec ($ html );Printhr ();Printarr ($
Machined Surfaces
An imaging device furnishes digital images of two machined surfaces thateventually will be assembled incontact with each other. The roughness of this final contact is to be estimated.
A digital image is composed of
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