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試圖解構一個函數我收到一個警告通知,用於從數據庫中檢索CSV數據。PHP:在urldecode/explode中未定義偏移
功能是從index.php文件調用,並且可以被格式化爲
$masterRecords = $qb->genResultsTable($qid, $config[27]);
$config[27]
是動態設置的,而是來幫助理解;它是一個以週期爲單位的整數列表。例如"3.4.5.6.7.8.9.25.141.137.83"
$qid
是一個整數 - 例如, "63"
。
該函數的工作原理,但我想看看如果我可以擺脫php通知。
Notice: Undefined offset: 106 in /vagrant/public/arc/inc/lib.php on line 522
調用堆棧:
爲每個項目獲得通知通過循環傳遞
1 0.0028 417156 {main}() ../index.php:0
2 1.2886 473280 qb->genResultsTable() ../index.php:66
功能:
public function genResultsTable($qid, $clist) {
$url = "{$this->qb_ssl}{$this->db_id}?act=API_GenResultsTable&ticket={$this->ticket}&apptoken={$this->app_token}&qid={$qid}&clist={$clist}&slist={$clist}&options=csv";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, $this->cjFile);
curl_setopt($ch, CURLOPT_COOKIEFILE, $this->ckfile);
// curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
curl_setopt($ch, CURLOPT_COOKIE, "TICKET=" . urlencode($this->ticket));
$r = curl_exec($ch);
$r = preg_replace_callback('/([\'"])([^"]+)\1/', 'call_back', $r);
preg_match_all('/(.*)\r\n/', $r, $matchs);
$fields = explode('.', $clist);
$count = count($matchs[0]);
$arrs = array();
for ($i = 1; $i < $count; $i++) {
$explode_arr = explode(',', $matchs[0][$i]);
$arr = array();
foreach ($fields as $key => $field) {
// vv THIS BELOW LINE IS THE LINE THAT IS INDICATED IN ERROR vv
$arr[$field] = urldecode($explode_arr[$key]);
}
$arrs[] = $arr;
}
return $arrs;
}
function call_back($matches) {
return urlencode($matches[0]);
}
函數的工作原理,所以我只是想知道,每行的$鍵是未定義的,它對函數的結果沒有任何影響? '偏移未定義'錯誤會對代碼性能產生影響嗎? – user1874512
總是使用'isset()'來防止這種錯誤... – HamZa