西安網(wǎng)絡(luò)公司，小宏在開(kāi)發(fā)過(guò)程中，很多通過(guò)APP或者web前端會(huì)通過(guò)接口給我們以base64編碼字符串的方式上傳圖片，這個(gè)時(shí)候我們就需要將這些base64編碼字符串轉(zhuǎn)化成圖片，并且保存到本地，我們來(lái)講解一下。

<?php

// 調(diào)用方法

public function uploads()

{

    $content = $this -> getContent();

    $this->base64_image_content($content, './uploads');

}

// base64編碼字符串轉(zhuǎn)換成圖片并保存到本地

public function base64_image_content($base64_image_content, $path)

{

    if( preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_image_content,$result) )

{

        $type = $result[2];

        $new_file = $path . "/images/" . date('Ymd', time()) . "/";

        if( !file_exists( $new_file ) )

{

            // 檢查是否有該文件夾，如果沒(méi)有就創(chuàng)建，并給予最高權(quán)限

            mkdir($new_file, 0700);

        }

        $new_file = $new_file.time().rand(1000,9999).".{$type}";

        if ( file_put_contents( $new_file, base64_decode(str_replace($result[1], '', $base64_image_content))) )

{

            return '/' . $new_file;

        }else{

            return false;

        }

    }else{

        return false;

    }

}

// 測(cè)試內(nèi)容

public function getContent()

{

    return $content ="data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA6klEQVRYhe2WIQ7CQBBF

3xIUulmJbpAtJ2lSxQE4BJpDgCWoTXoSWF1d2aBri8CV2S4QYEX3yz8/mZfMZDIwdamxYltmCbAUSrU2thtkF0AqZBtt7M3VY

+4BLICD4OeAHXgpcBWyW+DoajDzAPxcwQGCy7eEBbATShttbD3IpsBZyO61sZWrh28JEyAT/IXDk7LJWIPgOxAcwDcCUX3PuS2zDkAbm7dldup71mp0o74IoNTTxVsJ3ksK

PoIIEAEiwKcAuTZWaWMVPI4RjyflbwBfUwSIABEgOIDvIamAi+DXDk86Rs27UNPSHT5bLdqHJYlmAAAAAElFTkSuQmCC";

}

?>