curl站外抓取第二发

<?php
header("content-type:text/html;charset=utf-8");
ini_set(‘max_execution_time‘, 300);
function getScholar($start,$end){
$result = array();
for($i=$start;$i<$end;$i++){
    $url = "http://****.gov.cn*****";
    $post_data = array (
    "currentPage" => $i,//当前页
    "pageSize" =>7 ,
    );
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    // 我们在POST数据哦！
    curl_setopt($ch, CURLOPT_POST, 1);
    // 把post的变量加上
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
    $output = curl_exec($ch);
    $output_json = json_decode($output);
    curl_close($ch);
    //var_dump($output_json);
    //die();
    foreach($output_json->projectList as $k => $v){
        $result[$v->code][]=$v->code;
        $result[$v->code][]=$v->name;
    };
}
$end_end = $end-1;
$fp = fopen("output-{$start}-{$end_end}.csv",‘w‘);//打开文件
    foreach ($result as $v){
        ob_clean();
        if(fputcsv($fp,$v)===false){//加数组数据放到csv文件中
            die("can‘t write csv line");
        }
    }
fclose($fp) or die("can‘t close scholar.csv");
if(count($result)!=($end-$start)*7){
    echo "数据出现错误";
    echo "<br/>";
    echo count($result);
    exit;
}
    echo "数据抓取完成，共抓取到".count($result)."条记录";
}
getScholar(3950,4000);//读取3950-4000页的数据