本文介绍了我该如何解析strpos()“空分隔符"?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
这是错误:
对于:PHP 5.2 +
For: PHP 5.2+
这是该行上的代码:
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);
}
}
}
推荐答案
当 strpos 的第二个参数为空时,会发生此错误.例如,我可以在命令行上轻松模拟此错误:
This error occurs when the second parameter to strpos is empty. For instance, I can easily simulate this error at the command line:
$ php
<?php
echo strpos("foo", "");
?>
^D
Warning: strpos(): Empty delimiter in - on line 2
在您的代码中,这意味着$fgParams->get('base')
为空.
In your code, it means that $fgParams->get('base')
is empty.
在代码中添加一些检查,以确保传递给 strpos 的值有效,并且错误将消失.
Add some checks to your code to ensure that the values you pass to strpos are valid, and the error will go away.
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