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SHA1 vs md5 vs SHA256: which to use for a PHP login?
I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt?
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PHP json_decode() returns NULL with valid JSON?
... On my server, it doesn't. And I can't call json_last_error() because it's PHP 5.2.9. That function appears on PHP 5.3.0.
– Joel A. Villarreal Bertoldi
Mar 9 '10 at 15:54
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Uncaught SyntaxError: Unexpected token :
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And how do I fix this? I have a php redirect that is causing this in Chrome.
– Works for a Living
Mar 8 '16 at 20:20
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LINUX下用PHPIZE安装PHP GD扩展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
LINUX下用PHPIZE安装PHP GD扩展环境：LNMP in centOS 6.4。linux下PHP的扩展可以用phpize的方法，比较简单地进行启用。以下以PHP-GD2 库安装为例子。sudoyuminstallph...环境：LNMP in centOS 6.4。
linux下PHP的扩展可以用phpize的方法，比较简单地进行...
从异构软件开发者的角度看异构计算 - 操作系统(内核) - 清泛网 - 专注C/C++...
...我们应该如何开发异构的应用呢？接下来我们将讨论这个问题。
从GPU说起。其实在很早以前，人们已经意识到GPU的众核性能，开始大家只能使用图形处理接口来利用GPU的计算资源，后来CUDA[3]的推出，将基于CPU+GPU的异构计算逐...
HMAC-SHA1 in bash
...ution, but mainly to prove that the results are the same, we can also call PHP's hmac_sha1() from the command line:
[me@home]$ echo '<?= hash_hmac("sha1", "value", "key") ?>' | php
57443a4c052350a44638835d64fd66822f813319
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How do I get the last inserted ID of a MySQL table in PHP?
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mysql_(...) is deprecated in PHP >= 5.5 version.
– Iago
Oct 30 '14 at 2:12
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How to check for null in Twig?
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In addition, unlike the PHP isset() function, is defined will return true if a variable is defined and it's value is null.
– Pavel Petrov
Sep 19 '17 at 7:59
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How to remove duplicate values from an array in PHP
How can I remove duplicate values from an array in PHP?
24 Answers
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MySQL: determine which database is selected?
... currently selected? This seems very basic but I couldn't find anything on php.net or stackoverflow (all results are for "no database selected").
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