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Check whether an array is empty [duplicate]
... You don't need to count the elements or use empty(). A one-liner like php -r 'echo array() ? "T":"F";' will show the truthiness for an empty or non-empty array.
– jerseyboy
May 16 '14 at 13:08
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Using a .php file to generate a MySQL dump
...c(), I would choose the second one, which doesn't return the output to the PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a file, and this can be done by the command itself.
That external command will :
be a call to mysqldump, with th...
PHP编译安装时常见错误解决办法，php编译常见错误 - 更多技术 - 清泛网 - ...
PHP编译安装时常见错误解决办法，php编译常见错误PHP编译安装时常见错误解决办法，php编译常见错误This article is post on https: coderwall.com p ggmpfaconfigure: error: xslt-...PHP编译安装时常见错误解决办法，php编译常见错误
This article is po...
How can I get the MAC and the IP address of a connected client in PHP?
...ow the MAC and the IP address of the connect clients, how can I do this in PHP?
16 Answers
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How do I use PHP namespaces with autoload?
...Class1 is not in the global scope.
See below for a working example:
<?php
function __autoload($class)
{
$parts = explode('\\', $class);
require end($parts) . '.php';
}
use Person\Barnes\David as MyPerson;
$class = new MyPerson\Class1();
Edit (2009-12-14):
Just to clarify, my usage...
get UTC time in PHP
How can I get UTC/GMT +/- time stamp using PHP's date() function? For example, if I try
12 Answers
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How to determine the memory footprint (size) of a variable?
Is there a function in PHP (or a PHP extension) to find out how much memory a given variable uses? sizeof just tells me the number of elements/properties.
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Best way to test for a variable's existence in PHP; isset() is clearly broken
...f isset().
Since this is takes the array to check as a function argument, PHP will still raise "notices" if the array itself doesn't exist. In some cases, it can validly be argued that each dimension should have been initialised first, so the notice is doing its job. For other cases, a "recursive" ...
Dynamically generating a QR code with PHP [closed]
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The easiest way to generate QR codes with PHP is the phpqrcode library.
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