php - 捕获每一行的第一个字

Question

我有一个文本文件，我想从中捕获每个第一个单词:

First name|All|01.01.55.41

Second name||01.01.55.41

Third name||01.01.55.41

我正在尝试:

function get_content() {
    $mailGeteld = NULL;
        $mailGeteld = file_get_contents("content.txt");
        $mailGeteld = explode("|",$mailGeteld);
        return $mailGeteld[0];
}

但现在我只得到“名字”，我怎样才能循环它以便结果如下:

First name, Second name, Third name

Answer 1

file 逐行读取文件。

function get_content() {
        $firstWords = array();
        $file = file("content.txt"); //read file line by line
        foreach ($file as $val) {
            if (trim($val) != '') { //ignore empty lines
                $expl = explode("|", $val);
                $firstWords[] = $expl[0]; //add first word to the stack/array
            }
        }
        return $firstWords; //return the stack of words - thx furas ;D
}

echo implode(', ', get_content()); //puts a comma and a blankspace between each collected word