php读取text 分割成数组

<?php

$url  = dirname(__FILE__) . "/phone.txt";
$content = fopen($url,'r'); //打开文件

while(!feof($content)){
    $row[] = fgets($content); //fgets逐行读取，4096最大长度，默认为1024
}
//var_dump($row);

$arr = array();

/*
//foreach
foreach ($row as $key) {
	if(!empty(trim($key))){ //去除空格、不为空
		$field[] = explode('-',trim($key)); //以'-'分割每行为数组
	}
}
*/

//for
for ($i = 0; $i < count($row); $i += 1){
	if(!empty(trim($row[$i]))){
    	$field[] = explode('-',$row[$i]);
	}
}

//var_dump($field);

//sql
foreach ($field as $key) {
	$data = array(
		'a' => $key[0], 
		'b' => $key[1],
		'c' => $key[2],
		'd' => $key[3],
	);
	var_dump($data);
}

fclose($content); //关闭文件