本文章来给大家列举一些常用的php 正则提取文章中的图片,并替换、移动图片目录代码,希望此文章对大家会有所帮助。
上传图片时,上传的图片并没有全部用到,那么可以设置上传时只存到临时文件夹里面,文章发布的时候把真正用到的图片移动到有用的目录里,这样定期清理无用目录就可以了。
<?php //转移临时文件夹中的图片 $imgssss = preg_match_all("/linshi/[^\s\'\"]+.jpg|png|gif|jpeg{1}/ui", $content, $imgss); $i = 1; foreach ($imgss as $aimg) { if (is_string($aimg)) { if (file_exists($aimg)) { $newdir = "upload/" . date("ymdhis") . "/"; if (!file_exists($newdir)) { mkdir($newdir, 0755, true); } $newname = $newdir . date("ymdhis") . $i . "." . pathinfo($aimg, PATHINFO_EXTENSION); rename($aimg, $newname); $content = str_replace($aimg, $newname, $content); } $i++; } elseif (is_array($aimg)) { foreach ($aimg as $imga) { if (file_exists($imga)) { $newdir = "upload/" . date("ymdhis") . "/"; if (!file_exists($newdir)) { mkdir($newdir, 0755, true); } $newname = $newdir . date("ymdhis") . $i . "." . pathinfo($imga, PATHINFO_EXTENSION); rename($imga, $newname); $content = str_replace($imga, $newname, $content); } $i++; } } } ?>
如果只是移动单张图片比较简单:
<?php $newdir = "upload/" . date("ymdhis") . "/"; if (!file_exists($newdir)) { mkdir($newdir, 0755, true); } $newname = $newdir . "s_" . date("ymdhis") . "." . pathinfo($upimgurl, PATHINFO_EXTENSION); rename($upimgurl, $newname); ?>
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