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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. Advanced application of PHP file processing - file pointer
Introduction: PHP can realize the positioning and query of file pointers, thereby realizing quick query of the required information. The file pointer function has rewind(), fseek(), feof() and ftell() functions.
2. php Summary of methods to get the number of lines in a file
##Introduction: This article introduces three ways to get the number of file lines in PHP. The first method is to use the feof and fgets functions, the second method is to use the stream_get_line function, and the third method is to use the count function. , please see the following example for specific implementation
3. The correct way to read files with PHP
Introduction: Roger McCoy (rogermccoy@gmail.com), IT Specialist, Freelance Writer March 06, 2007 Learn how to use PHP's various file functions. Review basic file functions such as fopen, fclose, and feof; learn about read functions such as fgets, fgetss, and fscanf. And found functions that process entire files in one or two lines of code. Let's count how many ways there are to handle...
Introduction: php feof function
5. The correct way to read files with PHP
Introduction: Learn how to use PHP's various file functions. Review basic file functions such as fopen, fclose, and feof; learn about read functions such as fgets, fgetss, and fscanf. And found functions that process entire files in one or two lines of code. Let’s count how many ways there are One of the joys of working with a modern programming language like PHP is the sheer number of options available. PHP can easily win Perl's motto "There's more than ...
6. The correct way to read files with PHP
Introduction: Learn how to use PHP's various file functions. View basic file functions such as fopen, fclose, and feof; learn about functions such as fgets, Reading functions like fgetss and fscanf and discovering functions that process an entire file in one or two lines of code. Let's count how many ways there are. One of the joys of working with a modern programming language like PHP is that there are a ton of them. Options available. PHP can easily live up to Perl's motto "There's more than ...
7. How PHP uses the feof() function to read files
Introduction: How PHP uses the feof() function to read files
Introduction: Human Resources Document No. 10774 of the Ministry of Human Resources and Social Security: Document No. 10774 of the Ministry of Human Resources and Social Security. PHP text file reading efficiency: The homepage is about 3KB. The copy code for local testing is as follows: file_get_contents('shadow.xml'); Time-consuming It takes 0.0003 seconds to copy the code. The code is as follows: $indexFile = fopen('shadow.xml', 'r');while ( !feof($indexFile)) fgetc( $indexFile); It takes 0.026 seconds to copy the code. The code is as follows: $indexFile
9. galaxy s4 active Implementation code to determine the end of the HTTP request in Keep-Alive mode
Introduction: galaxy s4 active:galaxy s4 active Implementation code to determine the end of HTTP request in Keep-Alive mode: Therefore, the end of a request can be determined based on EOF. The following code (PHP) is very common: Copy the code code as follows:// $fp is The handle generated by fsockopen() while(!feof($fp)) { echo fgets($fp); } (Note: The short connection mode is marked with "Connection: close" in the header, and the long connection is marked with "Connection: keep -alive" mark. Currently HTTP/1.0 defaults
10. fop PHP implementation code for reading web page file content fopen, curl, etc.
Introduction: fop:fop PHP implementation code for reading web page file content fopen, curl, etc.: 1. fopen implementation code: Copy the code as follows:
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