Three, read the file

1, the Read file function has

(1) fread (file name, read size), such as Fread ($file _path,filesize ($file _path));

(2) file_get_contents (file name, this function actually contains fopen (file) +fread (file) +fclose (file));

, 2, there are three ways to read files

The first way to read files:

/* The first way to read the file */$file _path = "Test.txt", if (file_exists ($file _path)) {    //Open file    $fp = fopen ($file _path, "A +");    Read the content and enter    $conn = fread ($fp, FileSize ($file _path));    echo "The contents of the file is:<br/>";    The newline character in the Web page is <br/> the line break in the text is \ r \ n, you need to replace the newline character    $conn = Str_replace ("\ r \ n", "<br/>", $conn);    echo $conn;    Fclose ($file _path);} else{    echo ' file does not exist! ‘;}

The second way of reading files:

/* The second way to read the file */$file _path = "Test.txt"; $conn = file_get_contents ($file _path); $conn = Str_replace ("\ r \ n", "<br/>", $conn); Echo $conn;

The third way to read files:

/* There is a flaw in the first two ways, if the read file is too large, it is prone to error, so the third Way is recommended *//* the third method of reading the file */$file _path = "Test.txt"; if (file_exists ($file _path)) {    $fp = fopen ($file _path, "A +");    $buffer = 1024x768;    $str = "";    while (!feof ($FB)) {        $str. = Fread ($fp, $buffer);    }     $str = Str_replace ("\ r \ n", "<br/>", $str);    echo $str;    Fclose ($file _path);} else{    echo "file does not exist! ";}

　　

Three, read the file