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php:获取数组第一个值 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php:获取数组第一个值自PHP 5.4版本后可以使用[ ]来取数据指定位置的元素,索引从0开始,即$arr[0]取数组第一个值。不过为了兼容性,建议还是采取reset(),current(),next()等函数来取数组中的值,reset($arr)后current($arr)取第一个值。自...
LINUX下用PHPIZE安装PHP GD扩展 - PHP - 清泛IT论坛,有思想、有深度
...zqp2013 于 2015-4-26 14:39 编辑
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。sudo yum install php-gd2 png jpeg freetype //YUM安装扩展cd /app/php-5.4.13/ext/gd &nbs...
PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...) can use prepared statements in the query cache. So your version of MySQL+PHP can use prepared statements with the query cache. However, make careful note of the caveats for caching query results in the MySQL documentation. There are many kinds of queries which cannot be cached or which are useless...
New Line on PHP CLI
I have a php CLI script and cannot get the output to break on new lines. I do
4 Answers
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PHP page redirect [duplicate]
Can PHP make a redirect call after executing a function? I am creating a function on the completion of which I want it to redirect to a file located in the same root folder. Can it be done?
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Convert number to month name in PHP
I have this PHP code:
26 Answers
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Find substring in the string in TWIG
...tring using Twig. On the words, I need analogue of 'strstr' or 'strpos' in php.
I googled and searched this issue in stackoverflow but nothing found. Does someone know how to solve this problem?
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How can I split a comma delimited string into an array in PHP?
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One way is to use count() (aka sizeof) - php.net/manual/en/function.count.php
– Matthew Groves
Nov 11 '15 at 13:19
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What does a \ (backslash) do in PHP (5.3+)?
What does a \ do in PHP?
4 Answers
4
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How do I convert a string to a number in PHP?
...Script we can use Number() , but is there any similar method available in PHP?
30 Answers
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