How to read the last line of a file in PHP?
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How to read the last line of a file in PHP?
The ‘fseek’ function is used to move to the end of the file or the last line. The line is read until a newline is encountered. After this, the read characters are displayed.
How do I make the first line of a file read only in PHP?
If you ABSOLUTELY know the file exists, you can use a one-liner: $line = fgets(fopen($file, ‘r’)); The reason is that PHP implements RAII for resources. That means that when the file handle goes out of scope (which happens immediately after the call to fgets in this case), it will be closed.
How do I read a file last?
Use fseek. You seek to the last position and seek it backward (use ftell to tell the current position) until you find a “\n”. $fp = fopen(“…..”); fseek($fp, -1, SEEK_END); $pos = ftell($fp); $LastLine = “”; // Loop backword util “\n” is found.
How read a string from line by line in PHP?
“php read line by line string” Code Answer’s
- $handle = fopen(“inputfile.txt”, “r”);
- if ($handle) {
- while (($line = fgets($handle)) !== false) {
- // process the line read.
- }
-
- fclose($handle);
- } else {
What is fgets PHP?
The fgets() function in PHP is an inbuilt function which is used to return a line from an open file. It is used to return a line from a file pointer and it stops returning at a specified length, on end of file(EOF) or on a new line, whichever comes first.
Does fgets read line by line?
The C library function char *fgets(char *str, int n, FILE *stream) reads a line from the specified stream and stores it into the string pointed to by str. It stops when either (n-1) characters are read, the newline character is read, or the end-of-file is reached, whichever comes first.
What does Fgets do in PHP?
PHP – Function fgets() The fgets() function can return a line from an open file. This function stops returning on a new line at specified length or EOF, whichever comes first and returns false on failure.
How do you get the last line from a file using just the terminal?
To look at the last few lines of a file, use the tail command. tail works the same way as head: type tail and the filename to see the last 10 lines of that file, or type tail -number filename to see the last number lines of the file.
How do you read the last line of a file in Java?
This snippet should work for you: BufferedReader input = new BufferedReader(new FileReader(fileName)); String last, line; while ((line = input. readLine()) != null) { last = line; } //do something with last!
How can I get text content of a PHP file?
Read Text Files in PHP
- Use the fgets() Function to Read Text Files Line by Line in PHP.
- Use the file() Function to Read Text Files Line by Line in PHP.
- Use the file_get_contents() and explode() Functions to Read File Line by Line in PHP.
What is the difference between fgets and Scanf?
fgets() can read from any open file, but scanf() only reads standard input. fgets() reads ‘a line of text’ from a file; scanf() can be used for that but also handles conversions from string to built in numeric types.
What is the difference between file_get_contents () function and file () function?
The file_get_contents() function reads entire file into a string. The file() function reads the entire file in a array, whereas file_get_contents() function reads the entire file into a string.
How do you tail a file?
How to Use the Tail Command
- Enter the tail command, followed by the file you’d like to view: tail /var/log/auth.log.
- To change the number of lines displayed, use the -n option: tail -n 50 /var/log/auth.log.
- To show a real-time, streaming output of a changing file, use the -f or –follow options: tail -f /var/log/auth.log.
How do you cat first 10 lines of a file?
Type the following head command to display first 10 lines of a file named “bar.txt”:
- head -10 bar.txt.
- head -20 bar.txt.
- sed -n 1,10p /etc/group.
- sed -n 1,20p /etc/group.
- awk ‘FNR <= 10’ /etc/passwd.
- awk ‘FNR <= 20’ /etc/passwd.
- perl -ne’1..10 and print’ /etc/passwd.
- perl -ne’1..20 and print’ /etc/passwd.
How do you find the last line of a String?
String[] lines = fileContents. split(“\n”); String lastLine = lines[lines. length – 1]; this lastline variable would contain last line.
