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How do I check if a string contains a specific word?

...", we can't use simpler constructs like !strpos($a, 'are'). Edit: Now with PHP 8 you can do this: if (str_contains('How are you', 'are')) { echo 'true'; } RFC str_contains share | improve this...
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?

... your cache. Now to test this theory there are couple things you can do: Allocate your array matice2 array like this matice2 [razmor, 4096], and run with razmor = 1024, 1025 or any size, and you should see very bad performance compared to what you had before. This is because you forcefully align a...
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When should you not use virtual destructors?

... Virtual functions mean every allocated object increases in memory cost by a virtual function table pointer. So if your program involves allocating a very large number of some object, it would be worth avoiding all virtual functions in order to save the ...
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Collections.emptyMap() vs new HashMap()

...ameters, it's certainly a bit wasteful to create a HashMap, which involves allocating an array, when you could just pass in the 'Empty Map' which is effectively a constant, the way it's implemented in java.util.Collections. ...
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How to transform array to comma separated words string? [duplicate]

...ode(",", $array); echo $comma_separated; // lastname,email,phone http://php.net/manual/en/function.implode.php share | improve this answer | follow | ...
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在MongoDB中模拟Auto Increment - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...MongoDB缺省并没有实现,所以需要模拟一下,编程语言以PHP为例,代码大致如下所示:<?phpfunct...MySQL用户多半都有Auto Increment情结,不过MongoDB缺省并没有实现,所以需要模拟一下,编程语言以PHP为例,代码大致如下所示: <?php ...
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实例演示SimpleXMLElement的用法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

实例演示SimpleXMLElement的用法使用PHP解析XML时,常用simplexml_load_string,缺省是一个SimpleXMLElement的包装函数,今天不说simplexml_load_string,只说SimpleXMLEle...使用PHP解析XML时,常用simplexml_load_string,缺省是一个SimpleXMLElement的包装函数,...
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phpcms v9 留言板的两种实现方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

phpcms v9 留言板的两种实现方法phpcms留言板插件,解压后直接复制到网站更目录。然后在后台里面找到模块管理进行安装,安装后。前台访问地址 index php?m=guestbook 留言 第一种方法:使用phpcms留言板插件。 解压后直接复制到网...
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Add Text on Image using PIL

... To add text on an image file, just copy/paste the code below &lt;?php $source = "images/cer.jpg"; $image = imagecreatefromjpeg($source); $output = "images/certificate".rand(1,200).".jpg"; $white = imagecolorallocate($image,255,255,255); $black = imagecolorallocate($image,7,94,94); $font_siz...
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Benefits of using the conditional ?: (ternary) operator

... Be careful with this in PHP, the ternary operator associates the wrong way in PHP. Essentially, if foo is false, then the whole thing will evaluate to 4 without doing the other tests. – Tom Busby Mar 21 '15 at ...