This function reads the entire file into a string. You may choose whatever memory size you want for the interpreter. Here, we can count lines in a file using the filegetcontents() function with the FILEIGNORENEWLINES flag. count() Function: The count() functions is an array function which is used to count all elements in an array or something in an object. If($handle) $linecount = substr_count($handle, PHP_EOL) PHP contains many functions like count(), iteratorcount(), glob(), openddir(), readdir(), scandir() and FilesystemIterator() to count number of files in a directory. However, if one have no problem with the memory available on the host system, like the OP, and proper memory limit in PHP is set (larger than the file length), substr_count can search the entire content of file with much performance: (2<<24)+(filesize($file)) ) // 32 MB for PHP + File size PHP script to find a string in a file and return the line numbers.
#Php file line count how to
The code is taking into consideration the use of least memory (2 MB chunks).īenchmark with a 85 MB file and 8M+ lines, execution time is: How can I count number of lines in a file To do this quickly and easily, use count() after you open the file with file(): count count( file( filename)) However, this will use a lot of memory if your file is large, as it has to load the entire file into memory in order to count the return value from file(). How to count files in a directory using PHP V VigneshKannan3 Read Discuss Courses Practice PHP contains many functions like count (), iteratorcount (), glob (), openddir (), readdir (), scandir () and FilesystemIterator () to count number of files in a directory.
$linecount += substr_count($chunk,"\n") // also with \n, \r, or \r\n Write a PHP script to count number of lines in a file. $linecount += substr_count($chunk,PHP_EOL) This is using substr_count and is much faster than fgets: $file="largefile.txt"
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