Code for reading files line by line (php, c implementation)

/**
 * Read the file line by line
 * @param string $filename
 * @site bbs.it-home.org
*/
function readFileByLine ($filename)
{
    $fh = fopen($filename, 'r');

    while (! feof($fh)) {
        $line = fgets($fh);
        echo $line;
    }

    fclose($fh);
}

// test

$filename = "/home/wzy/test/sort.txt";

readFileByLine($filename);

2，c语言按行读取文件

#include
#include
#include

#define LEN  1024

int main(void)
{
    char filename[LEN], buf[LEN];
    FILE *fp;
    int len;

    scanf("%s", filename);

    fp = fopen(filename, "r");

    if (fp == NULL) exit(-1);

    while (fgets(buf, LEN, fp) != NULL) {
        len = strlen(buf);
        buf[len - 1] = '