Explanation and example usage of fgets () function in php

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Description

1. The fgets () function is used to read one line at a time from the file.

2. It reads until it encounters a newline character (\ n) or EOF. The maximum length to be read is the specified length minus 1 byte.

Syntax:

String fgets (resource $handle [, int $length])

Parameters:

Handle: the file pointer must be valid and must point to a file successfully opened by fopen () or fsockopen () (which has not been closed by fclose ()).

Length: reads a line from the file pointed to by handle and returns a string up to length-1 bytes in length. Encounter a newline character (included in the return value), EOF, or stop after reading the length-1 byte (see which case occurs first). If no length is specified, the default is 1K, or 1024 bytes.

Example:

Create a test.txt file with the following contents:

Autumn is already very late, it seems that it may fall at any time, let winter to replace.

The roaring north wind may be the messenger of winter, coming in a hurry, not wanting to stay in the land for a while, then to the south.

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