Php 注意：未定义的偏移量：0
我一直在开发一些应用程序，其中包括cURL操作，然后删除特定URL的内容 刮削后的计算也很少 我现在面临的问题与未定义的数组索引有关 以下是一些职能部门面临的类似问题： {注意：第263行的D:\xampp\htdocs\Alps-Phase2\Alps\include\alpsOP\scrap-process-request2.php中未定义的偏移量：0} 还有更多类似的功能：Php 注意：未定义的偏移量：0,php,Php,我一直在开发一些应用程序，其中包括cURL操作，然后删除特定URL的内容 刮削后的计算也很少 我现在面临的问题与未定义的数组索引有关 以下是一些职能部门面临的类似问题： {注意：第263行的D:\xampp\htdocs\Alps-Phase2\Alps\include\alpsOP\scrap-process-request2.php中未定义的偏移量：0} 还有更多类似的功能： function getDomainName($objScrap) { try { $result = $
function getDomainName($objScrap)
{
try
{
$result = $objScrap->getDomainName();
return $result; //Notice: Undefined offset: 0
}
catch( Exception $e)
{
echo "Error in getDomainName !";
return FALSE;
}
}
function getDataForDomainName($objScrap)
{
try
{
$result = $objScrap->checkForKeywordInDomain();
return $result[0]; // Notice: Undefined offset: 0
}
catch( Exception $e)
{
echo "Error in getDataForDomainName !";
return FALSE;
}
}
function getDensityForDomainName($objScrap){
try
{
$result = $objScrap->getDomainDensity();
return $result[0]; // Notice: Undefined offset: 0
}
catch( Exception $e)
{
echo "Error in getDensityForDomainName !";
return FALSE;
}
}
function getDomainDensity()
{
$result=$this->getDomainName();
return $this->getKeywordDensity($result);
}
function getDomainName()
{
preg_match($this->_regExpDomain,$this->_url,$match);
if($match != NULL)
return $match[2];
else
return array(
0=> 'Please check URL '.$this->$_url.' [Domain Name]',
'error' => 'Please check URL '.$this->$_url.' [Domain Name]'
);
}
function getKeywordDensity(&$subject)
{
$splitKeywordCountTotal_len=0;
$splitKeywordCount = array();
$resultArray = array();
for($count_i=0;$count_i<count($this->_keywords);$count_i++)
{
$splitKeyword = $this->splitKeyword($this->_keywords[$count_i]);
$splitKeywordCount=0;
$splitKeywordCount = $this->prepareResultArray($subject,NULL,$splitKeyword);
$matchedKeywordCharacterCount=0;
$f=0;
foreach ($splitKeywordCount as $val=>$key)
{
$splitKeywordCount[$f][2]=strlen($key[0]);
$splitKeywordCount[$f][3]=$key[1]*strlen($key[0]);
$matchedKeywordCharacterCount=$matchedKeywordCharacterCount+$splitKeywordCount[$f][3];
$f++;
}
$totalWordsInVisibleContent = $this->getNumberOfWordsInSubject($subject);
$f=0;
$totalWordsInVisibleContent_len=0;
foreach ($totalWordsInVisibleContent as $val=>$key)
{
$totalWordsInVisibleContent_len=$totalWordsInVisibleContent_len+strlen($key);
}
$splitKeywordCountTotal = 0;
for($count_j=0;$count_j < count($splitKeywordCount);$count_j++)
{
$splitKeywordCountTotal = $splitKeywordCountTotal + $splitKeywordCount[$count_j][1];
$splitKeywordCountTotal_len = $splitKeywordCountTotal_len + $splitKeywordCount[$count_j][2];
}
$resultArray[$count_i] = array();
$resultArray[$count_i][0] = $this->_keywords[$count_i];
$resultArray[$count_i][1] = $matchedKeywordCharacterCount/ ($totalWordsInVisibleContent_len);
$resultArray[$count_i][2] = $splitKeywordCountTotal;
$resultArray[$count_i][3] = $matchedKeywordCharacterCount;
$resultArray[$count_i][4] = $totalWordsInVisibleContent;
$resultArray[$count_i][5] = $splitKeywordCountTotal_len;
$resultArray[$count_i][6] = $totalWordsInVisibleContent_len;
}
return $resultArray;
}
error_reporting(E_ALL);
ini_set('display_errors', 'On');
ini_set('html_errors', 'Off');
就在今天，我遇到了这样一个问题！我使用了PHP7.3.5，我得到了同样的错误，在四处搜索时，我发现解决方案是： 而不是：
try
{
$result = $objScrap->checkForKeywordInDomain();
return $result[0]; // Notice: Undefined offset: 0
}
try
{
$result = $objScrap->checkForKeywordInDomain();
if(isset($result[0])){
return $result[0];
}
}
try
{
$result = $objScrap->checkForKeywordInDomain();
return $result[0]; // Notice: Undefined offset: 0
}
try
{
$result = $objScrap->checkForKeywordInDomain();
if(isset($result[0])){
return $result[0];
}
}
希望这能帮助其他人{：）。变量转储（$result）在获得这些未定义偏移量的点上显示了什么？要么数组没有
0