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Why a function checking if a string is empty always returns true? [closed]
... '' will return true if you pass is numeric 0 and a few other cases due to PHP's automatic type conversion.
You should not use the built-in empty() function for this; see comments and the PHP type comparison tables.
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What are differences between PECL and PEAR?
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PECL stands for PHP Extension Community Library, it has extensions written in C, that can be loaded into PHP to provide additional functionality. You need to have administrator rights, a C compiler and associated toolchain to install those e...
PHP, get file name without file extension
I have this PHP code:
17 Answers
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Getting the first character of a string with $str[0]
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Does PHP $str[0] take into account that there can be 2Byte long chars? UTF and such? (even though substr() does not help with it either!)
– Tomer W
Jun 26 '13 at 13:29
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MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...m_RBtGroup3);
DDX_Control(pDX, IDC_RADIO9, m_RBtGroup4);
}
问题一：如何更改RadioButton默认值？？？
方法1
在定义控件变量时，默认变量初值为-1，表示此组的任何RadioButton均不被选中，如果需要改变初始默认按钮的设置情况，...
How can I catch a “catchable fatal error” on PHP type hinting?
I am trying to implement Type Hinting of PHP5 on one of my class,
1 Answer
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Why would $_FILES be empty when uploading files to PHP?
...mpServer 2 installed on my Windows 7 computer. I'm using Apache 2.2.11 and PHP 5.2.11. When I attempt to upload any file from a form, it seems to upload, but in PHP, the $_FILES array is empty. There is no file in the c:\wamp\tmp folder. I have configured php.ini to allow file uploads and such...
Unicode character in PHP string
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PHP 7.0.0 has introduced the "Unicode codepoint escape" syntax.
It's now possible to write Unicode characters easily by using a double-quoted or a heredoc string, without calling any function.
$unicodeChar = "\u{1000}";
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Why can't I overload constructors in PHP?
... have abandoned all hope of ever being able to overload my constructors in PHP, so what I'd really like to know is why .
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How to echo or print an array in PHP?
...nt in the array like datatype and length.
3) you can loop the array using php's foreach(); and get the desired output. more info on foreach in php's documentation website:
http://in3.php.net/manual/en/control-structures.foreach.php
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