10 recommended courses on file pointers

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. What is a PHP lock file? Summarize the usage of locked file examples

##Introduction: Advanced application of PHP file processing - file pointer PHP can implement files Positioning and querying of pointers to achieve fast query of required information. 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. 10 recommended articles about the php ftell() function

Introduction: An 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 function has rewind (), fseek(), feof() and ftell() functions. In the previous article "Advanced Applications 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 seen it, you can go and take a look, I won’t go into details here, today we mainly talk about the functions in the file pointer! 1: rewind(...

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10 recommended articles about the php fseek() function

Introduction: PHP file processing The advanced application of file pointer PHP can realize the positioning and query of the file pointer, thereby realizing the fast query of the required information. The file pointer functions include rewind(), fseek(), feof() and ftell() functions in the previous article. In the article "Advanced Applications 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 go into details here. Today we mainly talk about the functions in the file pointer! 1: rewind(...

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10 recommended articles about the php fpassthru() function

Introduction: fpassthru - Output all remaining data file pointers fpassthru (PHP 4, PHP 5) fpassthru - Output all remaining data file pointer description international fpassthru (resource $ handle) reads the EOF analysis of the specific file pointer from the current position and writes the results to the output buffer. You may need to rewind() to reset the file pointer to the beginning. file if you have written to a data file. If you only want to dump the output buffer of the file contents,...

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About the php fflush() function Article recommendation

Introduction: PHP fflush function fflush (PHP 4 = 4.0.1, PHP 5) fflush - Flushes output to a file description boolean fflush (resource$handled) This function forces writing of all The file handle pointed to by the buffered output resource. The parameter handle file pointer must be valid and must point to a file successfully opened by fopen () or fsockopen () (and not yet closed by fclose ())...

6. About php feof Recommended 10 articles on () function

#Introduction: Advanced application of PHP file processing—File pointer PHP It can realize the positioning and query of the file pointer, so as to realize the quick query of the required information. The file pointer functions include rewind(), fseek(), feof() and ftell() functions. In the previous article, "Advanced PHP file processing." In "Application—Remote File Access and Locking Files" we introduced the remote access of files and how to lock files. Friends who haven't read it can go and take a look. I won't go into details here. Today we mainly talk about the file pointer. Function! 1: rewind(...

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10 recommended articles about php fclose() function

Introduction: Examples of file handles: locating the starting position of unseen reads through handles and chunked reading of large files. In order to use the read file function, PHP scripts need to point them to the file to read using a path relative to The fopen() function is used to "connect" and the fclose function is used to "disconnect". The return value of the fopen function is a PHP file pointer, also known as a file handle. Once you have a file handle...

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10 recommended articles about the php fopen() function

##Introduction: Examples of file handles: locating the starting position of unseen reads through handles and chunked reads of large files. In order to use the read file function, you need to use the path relative to the PHP script to point them to the file to be read. , however, most PHP file functions use a slightly different mechanism to access files. This mechanism is very similar to the mechanism for connecting to a database. The process uses the fopen() function to "connect" and the fclose function to "disconnect". ". The return value of the fopen function is a PHP file pointer, also known as a file handle. Once you have a file handle...

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Details about file handles Introduction

Introduction: Examples of file handles: locating the starting position of unseen reads through handles and Chunked Reading of Large Files In order to use the read file functions, you need to point them to the file to be read using a path relative to the PHP script. However, most PHP file functions use a slightly different mechanism to access the file. This mechanism is very similar to the mechanism of connecting to the database. The process uses the fopen() function to "connect" and the fclose function to "disconnect". The return value of the fopen function is a PHP file pointer, also known as a file handle. Once you have a file handle...

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File descriptors under Linux and a detailed introduction to file pointers

Introduction: This article mainly introduces the detailed explanation of file pointers under Linux For related information on descriptors and file pointers, friends in need can refer to

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