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Remove first 4 characters of a string with PHP

How can I remove the first 4 characters of a string using PHP? 7 Answers 7 ...
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How to trim white spaces of array values in php

... array_walk() can be used with trim() to trim array <?php function trim_value(&$value) { $value = trim($value); } $fruit = array('apple','banana ', ' cranberry '); var_dump($fruit); array_walk($fruit, 'trim_value'); var_dump($fruit); ?> See 2nd example at http...
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术

...g,其配置大致如下所示: shell> cat /etc/syslog.conf # Log all kernel messages to the console. # Logging much else clutters up the screen. # kern.* /dev/console # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;...
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Abort Ajax requests using jQuery

...1.5 the returned object is a wrapper for the native XMLHttpRequest object called jqXHR. This object appears to expose all of the native properties and methods so the above example still works. See The jqXHR Object (jQuery API documentation). UPDATE 2: As of jQuery 3, the ajax method now returns a p...
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How to Sort Multi-dimensional Array by Value?

... Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first: function sortByOrder($a, $b) { return $a['order'] - $b['order']; } usort($myArray, 'sortByOrder'); Starting in PHP 5.3, you can use an anonymous func...
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How to show math equations in general github's markdown(not github's blog)

...portant word being "secure" there, considering your question :). Indeed, allowing javascript to be executed would be a bit off of the MarkDown standard text-to-HTML contract. Moreover, everything that looks like a HTML tag is either escaped or stripped out. Tell me how to show math symbols in...
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GPU Emulator for CUDA programming without the hardware [closed]

Question: Is there an emulator for a Geforce card that would allow me to program and test CUDA without having the actual hardware? ...
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How do I get the current date in JavaScript?

...h and date if you're not in north America. – Mark Micallef Jun 11 '14 at 4:11 6 The new Date.prot...
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How does facebook, gmail send the real time notification?

...JAX, it'll take a lot of the cross-compability problems away. In terms of PHP, you could simply poll an event log database table in your PHP script, and only return to the client when something happens? There are, I expect, many ways of implementing this. Implementing: Server Side: There appear ...
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The $.param( ) inverse function in JavaScript / jQuery

...ht with accepted answer "this won't work with arrays". Your solution works all right. – Robert Koritnik Sep 16 '09 at 12:44 add a comment  |  ...