本文介绍了cURL代码中未定义的错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在构建一个php脚本来搜索和抓取使用curl的Google页面，并收到以下错误。
I am building a php script to search and scrape google pages that uses curl, receiving the following error.
未定义偏移量：/ home / content / 53中为1 /7382753/html/Summer/wootsummer.php，第25行
Undefined offset: 1 in /home/content/53/7382753/html/Summer/wootsummer.php on line 25
在卷曲设置中，令人讨厌的行是波纹管。
The offending line is bellow, in the curl settings.
curl_setopt($ch, CURLOPT_URL,$urls[$counter]);
由于我是新手，所以任何建议或评论都将不胜感激。
作为参考，下面是脚本wootsummer.php：
Any suggestions or comments would be much appreciated, as I am new to curl.For reference, the script wootsummer.php is bellow:
<html>
<body>
<?php
error_reporting(E_ALL);
set_time_limit (0);
$urls=explode("\n", $_POST['url']);
$target=$_POST['target'];
$allurls=count($urls);
//use the new tool box
require "ToolBoxA4.php";
for ( $counter = 0; $counter <= $allurls; $counter++) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$urls[$counter]);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,'GET');
curl_setopt ($ch, CURLOPT_HEADER, 1);
curl_exec ($ch);
$curl_scraped_page=curl_exec($ch);
//call the new function parseA1
$arrOut = parseA1 ($curl_scraped_page);
//the output is an array with 3 items: $arrOut[0] is RHS, $arrOut[1] is TOP, $arrOut[2] is NAT
//to look at the RHS
$curl_scraped_page=strtolower($curl_scraped_page);
$haystack=$curl_scraped_page;
if (strlen(strstr($haystack,$target))>0) {
$FileName = abs(rand(0,100000));
$FileHandle = fopen($FileName, 'w') or die("can't open file");
fwrite($FileHandle, $curl_scraped_page);
$hostname="************";
$username="******";
$password="*******";
$dbname="********";
$usertable="*********";
$con=mysql_connect($hostname,$username, $password) or die ("<html><script language='JavaScript'>alert('Unable to connect to database! Please try again later.'),history.go(-1)</script></html>");
mysql_select_db($dbname ,$con);
$right = explode(",", $arrOut[0]);
$top = explode(",", $arrOut[1]);
for ( $countforme = 0; $countforme <= 5; $countforme++) {
$topnow=$top[$countforme];
$query = "INSERT INTO happyturtle (time, ad1) VALUES ('$FileName','$topnow')";
mysql_query($query) or die('Error, insert query failed');
}
for ( $countforme = 0; $countforme <= 15; $countforme++) {
$rightnow = $right[$countforme];
$query = "INSERT INTO ****** (time, ad1) VALUES ('$FileName','$rightnow')";
mysql_query($query) or die('Error, insert query failed');
}
mysql_close($con);
echo '$FileNameSQL';
fclose($FileHandle);
}
curl_close($ch);
}
?>
</body>
</html>
toolboxa4.php如下：
toolboxa4.php referred to above is bellow:
<?php
function strTrim ($strIn, $cutA, $cutB){
//keeps what is between $cutA and $cutB
$pieces = explode($cutA, $strIn, 2);
$str1 = $pieces[1]; //keep everything after cutA
$pieces = explode($cutB, $str1, 2);
$strOut = $pieces[0]; //keep everything before cutB
return $strOut;
}
function arrWords ($strIn, $theStart, $theEnd){
//returns what is between $theStart and $theEnd
$cutA = $theStart;
$pieces = explode($cutA, $strIn);
$pieces[0] = ""; //discard the first piece
$cutB = $theEnd;
foreach ($pieces as $key => $value) {
$arrB = explode($cutB, $value, 2);
$arrOut[$key] = $arrB[0]; //keep everything before cutB
}
return $arrOut;
}
function arrElems ($strIn, $tag){
//returns what is between <$tag> and </$tag>
$cutA = "<$tag>";
$pieces = explode($cutA, $strIn);
$pieces[0] = ""; //discard the first piece
$cutB = "</$tag>";
foreach ($pieces as $key => $value) {
$arrB = explode($cutB, $value, 2);
$arrOut[$key] = $arrB[0]; //keep everything before cutB
}
return $arrOut;
}
function arrElemAB ($strIn, $tagA, $tagB){
//returns what is between <$tagA><$tagB> and </$tagB></$tagA>
$cutA = "<$tagA><$tagB>";
$pieces = explode($cutA, $strIn);
$pieces[0] = ""; //discard the first piece
$cutB = "</$tagB></$tagA>";
foreach ($pieces as $key => $value) {
$arrB = explode($cutB, $value, 2);
$arrOut[$key] = $arrB[0]; //keep everything before cutB
}
return $arrOut;
}
function DropTag ($strIn, $tag){
//drops <$tag> and </$tag>. $strIn can be a string or an array of strings. $strOut is same type as $strIn.
$strA = str_replace("<$tag>", "", $strIn);
$strOut = str_replace("</$tag>", "", $strA);
return $strOut;
}
function arrCompress ($arrIn){
//deletes empty array entries
if(!empty($arrIn)){
foreach ($arrIn as $key => $value) {
if ($value == "") {
unset($arrIn[$key]);
}
}
$arrIn = array_values($arrIn);
}
return $arrIn;
}
function arrDeDup ($arrIn){
//changes duplicate array entries to empty string
if(!empty($arrIn)){
foreach ($arrIn as $key1 => $value1) {
foreach ($arrIn as $key2 => $value2) {
if ($key1 != $key2 and $value1 == $value2) {
$arrIn[$key2] = "";
}
}
}
}
return $arrIn;
}
function arrToString ($arrIn){
//turns an array into a string
$strOut = "";
if(!empty($arrIn)){
foreach ($arrIn as $value) {
$strOut .= "$value<br>";
}
}
return $strOut;
}
function arrContains ($arrIn, $strIn){
//deletes array entries that do not contain $strIn.
foreach ($arrIn as &$value) {
if (stripos($value, $strIn) === false) {
$value = "";
}
}
return $arrIn;
}
function arrNotContain ($arrIn, $strIn){
//deletes array entries that contain $strIn.
foreach ($arrIn as &$value) {
if (stripos($value, $strIn) !== false) {
$value = "";
}
}
return $arrIn;
}
function parseStrA1 ($strToParse){
//drop some tags
$strA = DropTag ($strToParse, "b");
//split the file into Top and RHS
$strTOP = strTrim ($strA, "<body", "<div id=rhs_block");
$strRHS = strTrim ($strA, "<div id=rhs_block", ">See your ad here");
//get the elements using tags
$arrTOP = arrElemAB ($strTOP, "span", "cite");
$arrRHS = arrElems ($strRHS, "cite");
//remove empty elements
$arrTOP = arrCompress ($arrTOP);
$arrRHS = arrCompress ($arrRHS);
//output results
$strA = "TOP<br>"
. arrToString ($arrTOP)
. "<br><br>RHS<br>"
. arrToString ($arrRHS);
return $strA;
}
function parseA1 ($strToParse){
//drop some tags
$strA = DropTag ($strToParse, "b");
//split the file into Top and RHS
$strTOP = strTrim ($strA, "<body", "<div id=rhs_block");
$strNAT = strTrim ($strA, "<body", "<div id=rhs_block");
$strRHS = strTrim ($strA, "<div id=rhs_block", ">See your ad here");
//get the elements using tags
$arrTOP = arrElemAB ($strTOP, "span", "cite");
$arrRHS = arrElems ($strRHS, "cite");
//get the links
$arrNAT = arrWords ($strNAT, '<a href="http://', '" ');
$arrNAT = arrNotContain ($arrNAT, "oogle");
//remove empty and duplicate elements
$arrTOP = arrCompress ($arrTOP);
$arrRHS = arrCompress ($arrRHS);
$arrNAT = arrDeDup ($arrNAT);
$arrNAT = arrCompress ($arrNAT);
//combine arrays into strings, comma separated values
$arrOut[0] = implode(",", $arrRHS);
$arrOut[1] = implode(",", $arrTOP);
$arrOut[2] = implode(",", $arrNAT);
return $arrOut;
}
?>
推荐答案
for ( $counter = 0; $counter <= $allurls; $counter++) {
for ( $counter = 0; $counter < $allurls; $counter++) {
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