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Can an Option in a Select tag carry multiple values?
... options in a HTML form:
(the data will be collected and processed using PHP)
15 Answers
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Simplest way to detect a mobile device in PHP
...est way to tell if a user is using a mobile device to browse my site using PHP?
15 Answers
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Memcache Vs. Memcached [duplicate]
Someone can explain me the difference between Memcache and Memcached in PHP environment?
What are the advantages of one over the other?
Can you also suggest the criteria used to choose between one or the other?
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When to use self over $this?
In PHP 5, what is the difference between using self and $this ?
23 Answers
23
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How can I get the last 7 characters of a PHP string?
...r for the 2nd argument.
$newstring = substr($dynamicstring, -7);
From the php docs:
string substr ( string $string , int $start [, int $length ] )
If start is negative, the returned string will start at the start'th character from the end of string.
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Remove useless zero digits from decimals in PHP
...n officially suggested method for typecasting... search "type juggling" on php.net
– Gergely Lukacsy
May 6 '16 at 8:44
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How to push both value and key into PHP array
...to combine arrays and keep the keys of the added array. For example:
<?php
$arr1 = array('foo' => 'bar');
$arr2 = array('baz' => 'bof');
$arr3 = $arr1 + $arr2;
print_r($arr3);
// prints:
// array(
// 'foo' => 'bar',
// 'baz' => 'bof',
// );
So you could do $_GET += array('on...
SHA1 vs md5 vs SHA256: which to use for a PHP login?
I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt?
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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...接。 因此，我们开发蓝牙 LE 组件是为了解决物联网连接问题。
三． 技术方法
BluetoothLE 组件是 MIT App Inventor 的新颖补充。 如图 4 所示，在 MIT App Inventor 平台上创建时，BLE 组件可以作为移动应用程序的一部分实现。 然后，该...
PHP - Merging two arrays into one array (also Remove Duplicates)
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array_unique(array_merge($array1,$array2), SORT_REGULAR);
http://se2.php.net/manual/en/function.array-unique.php
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