(PHP 5 >= 5.1.0, PHP 7)
SplFileObject::fgets — Gets line from file
public SplFileObject::fgets ( ) : string
Gets a line from the file.
This function has no parameters.
Returns a string containing the next line from the file, or false on error.
Throws a RuntimeException if the file cannot be read.
Example #1 SplFileObject::fgets() example
This example simply outputs the contents of file.txt line-by-line.
<?php
$file = new SplFileObject("file.txt");
while (!$file->eof()) {
echo $file->fgets();
}
?>
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https://www.php.net/manual/en/splfileobject.fgets.php