批量替换图片url链接/批量替换图片的Url地址 - yii2

1、批量替换链接：

PHP Code复制内容到剪贴板

// 以下这段为批量替换图片的url链接
$query = new \yii\db\Query();
$query->from('yoyocmf_article_data');
foreach($query->batch() as $articles){
foreach($articles as $article){
if(!$article){
echo "没有了";
continue;
}
$_module = Base::findOne($article['id']);
$_module->id = $article['id'];
$content = $article['content'];
// 替换图片链接
$content = str_replace("http://soft.ccc:8001/", "http://demo20.liqinwl.com/", $content);
$_module->content = $content;
$_module->save();
echo $article['id'] . " => 更新完成";
echo "<br/>";
}
}

2、批量替换内容中的图片，并抓取远程图片地址入库：

PHP Code复制内容到剪贴板

$query = new \yii\db\Query();
$query->from('yoyocmf_article_data');//->limit(10)->offset(472);
foreach($query->batch() as $articles){
if(!$articles){
echo "没有了";
continue;
}
foreach($articles as $article){
if(!$article){
echo "没有了";
continue;
}
$_module = Base::findOne($article['id']);
$_module->id = $article['id'];
$content = $article['content'];
$content = preg_replace_callback('/<img[\s\S]*?src="([\s\S]*?)"[\s\S]*?>/', function ($matches) {
if (!emptyempty($matches[1])) {
$imgDir = date('Ymd');
$res = Attachment::saveImgFromUrl($matches[1],$imgDir);
$img = Yii::$app->storage->getUrl($res[0]->path);
return Html::img($img);
}
}, $content);
$_module->content = $content;
$_module->save();
echo $article['id'] . " => 更新完成";
echo "<br/>";
}
}

PHP Code复制内容到剪贴板

/**
* PHP将网页上的图片攫取到本地存储
* @param $imgUrl *图片url地址
* @param string $saveDir 本地存储路径默认存储在当前路径
* @param null $fileName 图片存储到本地的文件名
* @return mix
*/
public static function saveImgFromUrl($imgUrl, $saveDir = './', $fileName = null)
{
if (emptyempty($imgUrl)) {
return false;
}
$hash = md5($imgUrl);
$attachment = static::findByHash($hash);
if ($attachment) {
return [$attachment, null];
}
$path = $saveDir;
$saveDir = Yii::getAlias('@storagePath/upload/') . $saveDir . "/";
//获取图片信息大小
$imgSize = getImageSize($imgUrl);
//p($imgSize);
if (!in_array($imgSize['mime'], array('image/jpg', 'image/gif', 'image/png', 'image/jpeg'), true)) {
return false;
}
//获取后缀名
$_mime = explode('/', $imgSize['mime']);
$_ext = '.' . end($_mime);
if (emptyempty($fileName)) { //生成唯一的文件名
$fileName = uniqid(time(), true) . $_ext;
}
//开始攫取
ob_start();
readfile($imgUrl);
$imgInfo = ob_get_contents();
ob_end_clean();
if (!file_exists($saveDir)) {
mkdir($saveDir, 0777, true);
}
$fp = fopen($saveDir . $fileName, 'a');
$imgLen = strlen($imgInfo); //计算图片源码大小
$_inx = 1024; //每次写入1k
$_time = ceil($imgLen / $_inx);
for ($i = 0; $i < $_time; $i++) {
fwrite($fp, substr($imgInfo, $i * $_inx, $_inx));
}
fclose($fp);
$filePath = ($path ? ($path . '/') : '') . $fileName;
$attachment = new static();
$attachment->path = $filePath;
$attachment->name = $fileName;
$attachment->extension = $_ext;
$attachment->type = $imgSize['mime'];
$attachment->size = $imgLen;
$attachment->hash = $hash;
$attachment->save();
return [$attachment, null];;
}

本文来自于：http://www.yoyo88.cn/study/yii2/375.html

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