What does file () do in PHP?
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What does file () do in PHP?
The file() reads a file into an array. Each array element contains a line from the file, with the newline character still attached.
What is the role of file () function?
This function is used to determine whether a file exists or not. It comes in handy when we want to know if a file exists or not before processing it.
Which function return information about file in PHP?
The pathinfo() function returns information about a file path.
What is fread () function in PHP?
The fread() function reads from an open file. The fread() function halts at the end of the file or when it reaches the specified length whichever comes first. It returns the read string on success. On failure, it returns FALSE.
What is a file tool used for?
file, in hardware and metalworking, tool of hardened steel in the form of a bar or rod with many small cutting edges raised on its longitudinal surfaces; it is used for smoothing or forming objects, especially of metal.
How do we read a file in PHP?
So here are the steps required to read a file with PHP.
- Open a file using fopen() function.
- Get the file’s length using filesize() function.
- Read the file’s content using fread() function.
- Close the file with fclose() function.
What are the different file functions?
There are many functions in the C library to open, read, write, search and close the file….Functions for file handling.
| No. | Function | Description |
|---|---|---|
| 1 | fopen() | opens new or existing file |
| 2 | fprintf() | write data into the file |
| 3 | fscanf() | reads data from the file |
| 4 | fputc() | writes a character into the file |
What is a file explain how the file open and file close function?
Function fopen() is used both to open or create a file, and fclose() is used to close an already opened file. File ‘read’ and ‘write’ operations can be performed after opening a file. The fputc() and fputs() functions are used to write characters and strings respectively in a file.
Which function returns file information?
Explanation: The function filesize() returns the size of the specified file and it returns the file size in bytes on success or FALSE on failure.
What is use of fread?
The fread() function in C++ reads the block of data from the stream. This function first, reads the count number of objects, each one with a size of size bytes from the given input stream. The total amount of bytes reads if successful is (size*count).
How file is opened and closed in PHP?
The fopen() function is used to open files in PHP. $file=fopen(“welcome. txt”,”r”);…Opening a File.
| Modes | Description |
|---|---|
| x | Write only. Creates a new file. Returns FALSE and an error if file already exists |
| x+ | Read/Write. Creates a new file. Returns FALSE and an error if file already exists |
Which function is used to open a file?
fopen
fopen is a standard function which is used to open a file. If the file is not present on the system, then it is created and then opened.
What function closes a file?
The fclose() function in PHP is an inbuilt function which is used to close a file which is pointed by an open file pointer. The fclose() function returns true on success and false on failure. It takes the file as an argument which has to be closed and closes that file.
How is file handling done in PHP?
PHP | Basics of File Handling
- “w” – Opens a file for write only.
- “r” – File is opened for read only.
- “a” – File is opened for write only.
- “w+” – Opens file for read and write.
- “r+” – File is opened for read/write.
- “a+” – File is opened for write/read.
- “x” – New file is created for write only.
