10 recommended articles about php fseek() function

Advanced application of PHP file processing - file pointer PHP can realize the positioning and query of file pointers, thereby realizing fast query of required information. The file pointer functions include rewind(), fseek(), feof() and ftell() function. In the previous article "Advanced Application of PHP File Processing—Remote File Access and Locking Files" we introduced remote access to files and how to lock files. Friends who haven't read it can go and take a look. I won't cover it here. Enough talk, today we mainly talk about the functions in the file pointer! 1: rewind() function This function sets the pointer of the file handle to the beginning of the file stream. The syntax format of this function is as follows: bool rewind (resource $handle) Note: If the file is opened in append ("a") mode, then Any data written to a file will always be appended to the end of the existing contents of the file, regardless of the position of the file pointer! 2: fseek() function The fseek() function realizes the positioning of the file pointer. The syntax format of this function is as follows:

1. 10 recommended articles about the php feof() function

Introduction: An advanced application of PHP file processing - file pointer PHP can realize the positioning and query of file pointers, thereby achieving For quick query of required information, the file pointer functions include rewind(), fseek(), feof() and ftell() functions. In the previous article "Advanced Application of PHP File Processing—Remote File Access and Locking Files" we introduced remote access to files and how to lock files. Friends who haven't read it can go and take a look. I won't cover it here. Enough talk, today we mainly talk about the functions in the file pointer! 1: rewind(...

2. Advanced application of PHP file processing - file pointer

Introduction: PHP can realize the positioning and query of file pointers, thereby realizing fast query of required information. The file pointer functions include rewind(), fseek(), feof() and ftell() function.

3. Comparative analysis of the efficiency of reading large files using the file function and fseek function

##Introduction: This article mainly compares and analyzes the efficiency of PHP using the file function and fseek function to read large files. It has certain reference value. Interested friends We can refer to

4. php fseek function reads two methods of large files

Introduction: Reading files in PHP is very simple, but if the file read is very large, how to solve it? We can directly use fseek to perform large file operations. This article will tell you. Introduce PHP to use the fseek function to read large files. Friends who need it can refer to

5. HP uses the file function and fseek function to read large files efficiency analysis

Introduction: PHP can use the file function and fseek function to read large files, but there may be differences in efficiency between the two. , this article introduces to you the comparative analysis of the php file function and the fseek function to achieve large file reading efficiency. Friends who need it can refer to it

6. Let the breakpoint resume transfer. Source code for PHP to support breakpoint resume transfer

Introduction: Breakpoint resume transfer: Breakpoint resume transfer Source code for PHP to support breakpoint resume transfer: For example, requesting one for the first time The file ranges from 0 to 999 bytes, and the second request is from 1000 to 1999 bytes, and so on. Each time the content of the file is requested, 1000 bytes are requested, and then the program obtains the corresponding file position through the fseek function, and then outputs the code. As follows: $fname = './05e58c19552bb26b158f6621a6650899'; $fp = fopen($fname,'rb'); $fsize = filesize($fname); if

7. http://www.12306.cn/mormhweb/ php generated file

Introduction: http://www.12306 .cn/mormhweb/:http://www.12306.cn/mormhweb/ php generated file: function rw_counterfile() { $fp=fopen("counter.txt","r+"); if($fp ==NULL) echo "File processing error"; rewind($fp);//The pointer moves to the beginning of the file fseek($fp, 2);//The pointer moves back 2 $point=ftell($fp);// echo $point." ;";// fp

##8. Counter The simplest PHP program--Counter

Introduction: Counter: Counter The simplest PHP program - Counter: Principle: 1. The first user browses a certain page. 2. The server program reads the number of times the page has been viewed from the database or file. 3. Store the number of times plus one and send it back to the first user. 4. The second user browses a certain page. 5. The server program reads the number of times the page has been viewed from the database or file. 6. Store the count plus one and send it back to the second user. Functions you need to know: fopen() open the file filesize() get the file size fseek() move the file pointer fgets() get the file pointer

9. php generate file_PHP Tutorial

Introduction: PHP generates files. ? functionrw_counterfile() { $fp=fopen("counter.txt","r+"); if($fp==NULL)echo "File processing error"; rewind($fp);//The pointer moves to the file header fseek ($fp,2);//Move the pointer backward 2 $point=ftell($

10. PHP code for reading and modifying a line of content in a large file _PHP Tutorial

Introduction: PHP code to read and modify the content of a certain line of a large file. Copy the code as follows: $fp = fopen('d:/file. txt', 'r+'); if ($fp) { $i = 1; while (!feof($fp)) { //Modify the second row of data if ($i == 2) { fseek($fp, 2, SEEK_CUR); fwrite($fp, '#'

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