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How to print a debug log?

I'd like to debug some PHP code, but I guess printing a log to screen or file is fine for me. 15 Answers ...
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App Inventor 2 试验组件 · App Inventor 2 中文网

...t 的输出)。 方法 对话(question) 向聊天机器人询问问题,连续的对话将记住先前对话中的信息,使用 重置对话 方法重置开始新的对话。 重置对话() 重置当前对话,聊天机器人在回复时会忘记之前的任何对话。 Fireb...
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How to Debug Variables in Smarty like in PHP var_dump()

... You can use {php} tags Method 1 (won't work in Smarty 3.1 or later): {php} $var = $this->get_template_vars('var'); var_dump($var); {/php} Method 2: {$var|@print_r} Method 3: {$var|@var_dump} ...
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A more pretty/informative Var_dump alternative in PHP? [closed]

Every decent PHP programmer has a print_r or var_dump wrapper they use, love and assign shortcut keys to, why don't we share our favourite ones . ...
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How to know which version of Symfony I have?

...s the console, try reading symfony/src/Symfony/Component/HttpKernel/Kernel.php, where the version is hardcoded, for instance: const VERSION = '2.2.0'; Just in case you are wondering, console creates an instance of Symfony\Bundle\FrameworkBundle\Console\Application. In this class construct...
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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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php: determine where function was called from

is there a way to find out, where a function in PHP was called from? example: 8 Answers ...
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Which Java Collection should I use?

...t, non-synchronized collections Collection: An interface representing an unordered "bag" of items, called "elements". The "next" element is undefined (random). Set: An interface representing a Collection with no duplicates. HashSet: A Set backed by a Hashtable. Fastest and smallest memory usage, w...
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How to prevent caching of my Javascript file? [duplicate]

... <script src="test.js?random=<?php echo uniqid(); ?>"></script> EDIT: Or you could use the file modification time so that it's cached on the client. <script src="test.js?random=<?php echo filemtime('test.js'); ?>"></script>...
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curl POST format for CURLOPT_POSTFIELDS

... EDIT: From php5 upwards, usage of http_build_query is recommended: string http_build_query ( mixed $query_data [, string $numeric_prefix [, string $arg_separator [, int $enc_type = PHP_QUERY_RFC1738 ]]] ) S...