PHP implements batch modification of picture names

This article mainly shares with you the method of batch modifying image names in PHP, mainly in the form of code. I hope it can help everyone.

<?php
// glob() 返回指定目录下的文件名以及目录
$arr = glob("img/*.jpg");
$time = time();
$i = 100001;
// 循环遍历
foreach($arr as $file) {
    
    // 获取图片后缀名
    $ext = pathinfo($file,PATHINFO_EXTENSION);
    // 确定图片的新名字
    $name = $time.$i++ . "." . $ext;
    // 重命名 
    rename($file, $name);
    
}
die();
?>

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