如何解析 strpos()“空分隔符”错误?
这是错误:
对于:PHP 5.2+
警告:strpos() [function.strpos]:/helper.php 第 445 行中的分隔符为空
,以下是该行的代码:
if($src = $img->getAttribute('src') AND strpos($src,$fgParams->get('base')) === false) { // prevents repeat processing
EgivaUtility::profiling('Processing Image SRC: '.$src);
// fix rel paths
$src = EgivaUtility::encode_url(EgivaUtility::makeAbsUrl($origLink,$src));
if($image_details = @getimagesize($src) AND !in_array($image_details[0],array(1,2)) AND !in_array($image_details[1],array(1,2))) {
EgivaUtility::profiling('Image Details: '.print_r($image_details,true));
$title = $img->getAttribute('title');
$alt = $img->getAttribute('alt');
if($fgParams->get('save_img')) { // consider restoring the JPath::clean()
// find image name and extension
$name = $title ? EgivaUtility::stringURLSafe($title) : EgivaUtility::stringURLSafe($alt);
preg_match('#[/?&]([^/?&]*)(\.jpg|\.jpeg|\.gif|\.png)#i',$src,$matches);
$ext = isset($matches[2]) ? strtolower($matches[2]) : '';
if(!$name) $name = isset($matches[1]) ? EgivaUtility::stringURLSafe($matches[1]) : md5($src);
unset($matches);
//create image file
$filename = $fgParams->get('name_prefix').$name.$ext;
$filepath = $fgParams->get('savepath').'images'.DS.$filename;
if(!file_exists($filepath)) {
if($contents = EgivaUtility::getUrl($src,$fgParams->get('scrape_type'),'images',$filepath)) {
$saved = true;
//if(EgivaUtility::savefile($contents,$name,$update=false,$header=null,$fgParams->get('savepath').'images')) $saved = true;
}
} else {
$saved = true;
}
if($saved) $img->setAttribute('src', $fgParams->get('srcpath').'images/'.$filename);
} else {
$img->setAttribute('src',$src);
}
EgivaUtility::profiling('Final Image SRC: '.$img->getAttribute('src'));
// $class = $img->getAttribute('class');
// $width = $img->getAttribute('width');
// $height = $img->getAttribute('height');
if(strlen($alt) >= JString::strlen($content['title']) OR !$alt) {
$img->setAttribute('alt',$content['title']);
}
if($fgParams->get('rmv_img_style')) {
$img->removeAttribute('class');
$img->removeAttribute('style');
$img->removeAttribute('align');
$img->removeAttribute('border');
$img->removeAttribute('width');
$img->removeAttribute('height');
}
if($fgParams->get('img_class')) {
$img->setAttribute('class',$fgParams->get('img_class'));
}
$new_img = $dom2->importNode($imgs->item($k),true);
$dom2->appendChild($new_img);
$images[$k] = $dom2->saveHTML();
$dom2->removeChild($new_img);
// hack to avoid encoding problems
$text = preg_replace($regex,'fg_img'.$k,$text,$limit=1);
$replace[$k] = 'fg_img'.$k;
$k++;
} else {
EgivaUtility::profiling('Image Rejected');
$text = preg_replace($regex,'',$text,1);
}
}
}
Here's the error:
For: PHP 5.2+
Warning: strpos() [function.strpos]: Empty delimiter in /helper.php on line 445
and here is the code on that line:
if($src = $img->getAttribute('src') AND strpos($src,$fgParams->get('base')) === false) { // prevents repeat processing
EgivaUtility::profiling('Processing Image SRC: '.$src);
// fix rel paths
$src = EgivaUtility::encode_url(EgivaUtility::makeAbsUrl($origLink,$src));
if($image_details = @getimagesize($src) AND !in_array($image_details[0],array(1,2)) AND !in_array($image_details[1],array(1,2))) {
EgivaUtility::profiling('Image Details: '.print_r($image_details,true));
$title = $img->getAttribute('title');
$alt = $img->getAttribute('alt');
if($fgParams->get('save_img')) { // consider restoring the JPath::clean()
// find image name and extension
$name = $title ? EgivaUtility::stringURLSafe($title) : EgivaUtility::stringURLSafe($alt);
preg_match('#[/?&]([^/?&]*)(\.jpg|\.jpeg|\.gif|\.png)#i',$src,$matches);
$ext = isset($matches[2]) ? strtolower($matches[2]) : '';
if(!$name) $name = isset($matches[1]) ? EgivaUtility::stringURLSafe($matches[1]) : md5($src);
unset($matches);
//create image file
$filename = $fgParams->get('name_prefix').$name.$ext;
$filepath = $fgParams->get('savepath').'images'.DS.$filename;
if(!file_exists($filepath)) {
if($contents = EgivaUtility::getUrl($src,$fgParams->get('scrape_type'),'images',$filepath)) {
$saved = true;
//if(EgivaUtility::savefile($contents,$name,$update=false,$header=null,$fgParams->get('savepath').'images')) $saved = true;
}
} else {
$saved = true;
}
if($saved) $img->setAttribute('src', $fgParams->get('srcpath').'images/'.$filename);
} else {
$img->setAttribute('src',$src);
}
EgivaUtility::profiling('Final Image SRC: '.$img->getAttribute('src'));
// $class = $img->getAttribute('class');
// $width = $img->getAttribute('width');
// $height = $img->getAttribute('height');
if(strlen($alt) >= JString::strlen($content['title']) OR !$alt) {
$img->setAttribute('alt',$content['title']);
}
if($fgParams->get('rmv_img_style')) {
$img->removeAttribute('class');
$img->removeAttribute('style');
$img->removeAttribute('align');
$img->removeAttribute('border');
$img->removeAttribute('width');
$img->removeAttribute('height');
}
if($fgParams->get('img_class')) {
$img->setAttribute('class',$fgParams->get('img_class'));
}
$new_img = $dom2->importNode($imgs->item($k),true);
$dom2->appendChild($new_img);
$images[$k] = $dom2->saveHTML();
$dom2->removeChild($new_img);
// hack to avoid encoding problems
$text = preg_replace($regex,'fg_img'.$k,$text,$limit=1);
$replace[$k] = 'fg_img'.$k;
$k++;
} else {
EgivaUtility::profiling('Image Rejected');
$text = preg_replace($regex,'',$text,1);
}
}
}
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评论(4)
当 strpos 的第二个参数为空时,会发生此错误。例如,我可以轻松地在命令行模拟此错误:
在您的代码中,这意味着
$fgParams->get('base')
为空。在代码中添加一些检查,以确保传递给 strpos 的值有效,并且错误将会消失。
This error occurs when the second parameter to strpos is empty. For instance, I can easily simulate this error at the command line:
In your code, it means that
$fgParams->get('base')
is empty.Add some checks to your code to ensure that the values you pass to strpos are valid, and the error will go away.
将第 445 行从 更改
似乎
为
get('base') 没有返回任何内容。这在你的脚本中可能吗?也许这表明程序的另一个区域以前存在错误。
Change line 445
from
to
Seems like that get('base') is returning nothing. Is this possible in your script? perhaps it's the indication of a previous error in another area of the program.
请确保 $fgParams->get('base') 的值不为空,如条件中提到的 json。
Please make sure that value of $fgParams->get('base') is not blank as json mentioned in condition.
我遇到了同样的问题:
当我添加两个
()
分隔符时,错误消失了:所以尝试:
猜测
htmlentities
要求其参数位于(分隔符)内。I had the same problem with:
The error disappeared when I added the two
()
delimiters:So try:
Guess
htmlentities
requires its parameters to be within (delimiters).