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How to check whether a string is Base64 encoded or not

... Try like this for PHP5 //where $json is some data that can be base64 encoded $json=some_data; //this will check whether data is base64 encoded or not if (base64_decode($json, true) == true) { echo "base64 encoded"; } e...
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What is the benefit of zerofill in MySQL?

...rkByers, Practically speaking though, wouldn't most client-libraries (e.g. PHP) simply strip the zeros off before they hand it over to the application code? If so, then it really seems somewhat pointless. A bad design in the early days of MySQL. – Pacerier May...
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Convert MySql DateTime stamp into JavaScript's Date format

... #MySQL select date_format(my_date_column,'%Y-%m-%dT%T') from my_table; #PHP $php_date_str = substr($mysql_date_str,0,10).'T'.substr($mysql_date_str,11,8); //JavaScript js_date_str = mysql_date_str.substr(0,10)+'T'+mysql_date_str.substr(11,8); ...
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How to decompile an APK or DEX file on Android platform? [closed]

... APK Decompiler App for Windows http://forum.xda-developers.com/showthread.php?t=2493107 Update 2015/12/04 ClassyShark you can open APK/Zip/Class/Jar files and analyze their contents. https://github.com/google/android-classyshark ...
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Deep Learning(深度学习)学习笔记整理系列之(四) - 大数据 & AI - 清泛...

...些自动学习得到的特征可以大大提高精确度,甚至在分类问题中比目前最好的分类算法效果还要好! AutoEncoder存在一些变体,这里简要介绍下两个: Sparse AutoEncoder稀疏自动编码器: 当然,我们还可以继续加上一些...
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Redirect from an HTML page

...SEO people: <link rel="canonical" href="http://www.example.com/product.php?item=swedish-fish"/> share | improve this answer | follow | ...
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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...同时读写可能会有IO异常,导致drbd设备失效 为了解决这个问题则使用 gfs + cman 实现分布式文件锁方案 3.3安装cman yum –y cman 3.4 gfs集群文件系统 在 /usr/local/drbd-utils-8.9.4/etc/drbd.conf 在配置文件的 net 选项中 all...
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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]

...ternary operator but not the ternary operator. Major languages (C#, Java, PHP) consider it a conditional operator, and call it the ?: operator. Occasionally (JavaScript) it is called the conditional operator. – Sheepy May 30 '14 at 8:02 ...
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Regex - how to match everything except a particular pattern

... with [[:digit:]]. The first reference mentions it is specific to Perl and PHP: "There is a variation using syntax specific to Perl and PHP that accomplishes the same." – miguelmorin Oct 24 '18 at 12:43 ...
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Stop Chrome Caching My JS Files

...thing like script.js?a=[random Number] with the Random number generated by PHP. Have you tried expire=0, the pragma "no-cache" and "cache-control=NO-CACHE"? (I dunno what they say about Scripts). share | ...