大约有 31,000 项符合查询结果（耗时：0.0240秒） [XML]
JavaScript isset() equivalent
In PHP you can do if(isset($array['foo'])) { ... } . In JavaScript you often use if(array.foo) { ... } to do the same, but this is not exactly the same statement. The condition will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well).
...
move_uploaded_file gives “failed to open stream: Permission denied” error
...is error when trying to configure the upload directory with Apache 2.2 and PHP 5.3 on CentOS.
13 Answers
...
Accept function as parameter in PHP
...en wondering whether is possible or not to pass a function as parameter in PHP; I want something like when you're programming in JS:
...
How to calculate the difference between two dates using PHP?
...
Use this for legacy code (PHP < 5.3). For up to date solution see jurka's answer below
You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate differ...
SimpleTest vs PHPunit
...eally really baffled that SimpleTest still is considered an alternative to phpunit. Maybe i'm just misinformed but as far as I've seen:
PHPUnit is the standard; most frameworks use it (like Zend Framework (1&2), Cake, Agavi, even Symfony is dropping their own Framework in Symfony 2 for phpunit)...
Correctly determine if date string is a valid date in that format
...t;format($format) === $date;
}
[Function taken from this answer. Also on php.net. Originally written by Glavić.]
Test cases:
var_dump(validateDate('2013-13-01')); // false
var_dump(validateDate('20132-13-01')); // false
var_dump(validateDate('2013-11-32')); // false
var_dump(validateDate('2...
Prevent nginx 504 Gateway timeout using PHP set_time_limit()
I am getting 504 timeouts message from nginx when my PHP script is running longer than usual. set_time_limit(0) does not seem to prevent that! Does it not work when running php5-fpm on nginx? If so, whats the proper way of setting the time limit?
...
Difference between “include” and “require” in php
...
You find the differences explained in the detailed PHP manual on the page of require:
require is identical to include except upon failure it will also produce a fatal E_COMPILE_ERROR level error. In other words, it will halt the script whereas include only emits a warning...
What does the variable $this mean in PHP?
I see the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it.
10 An...
Check if $_POST exists
...ugustus Francis's answer, empty() is not correct for choice #1, because in php, the string '0' is equivalent to false - and empty() returns true for all values equivalent to false. So using empty, the code would skip printing if the value was '0'. If you want to exclude the empty string, see Augustu...