大约有 37,000 项符合查询结果（耗时：0.0219秒） [XML]
Catching multiple exception types in one catch block
...
Update:
As of PHP 7.1, this is available.
The syntax is:
try
{
// Some code...
}
catch(AError | BError $e)
{
// Handle exceptions
}
catch(Exception $e)
{
// Handle the general case
}
Docs: https://www.php.net/manual/en/lang...
Creating default object from empty value in PHP?
I see this error only after upgrading my PHP environment to PHP 5.4 and beyond. The error points to this line of code:
16 A...
Why does PHP consider 0 to be equal to a string?
...
This is due to how PHP does the comparison operation that the == comparison operator denotes:
If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison p...
How to remove “index.php” in codeigniter's path
How do I remove the "index.php" sticking out in every path in codeigniter somewhere in the center?
I want clean non index.php-fied URLs ?
...
What Are the Differences Between PSR-0 and PSR-4?
...rc/, with PSR-0 it means it will look for Acme\Foo\Bar in src/Acme/Foo/Bar.php while in PSR-4 it will look for it in src/Bar.php, allowing for shorter directory structures. On the other hand some prefer to have the full directory structure to clearly see what is in which namespace, so you can also s...
How do you use bcrypt for hashing passwords in PHP?
Every now and then I hear the advice "Use bcrypt for storing passwords in PHP, bcrypt rules".
11 Answers
...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
I'm running a PHP script and continue to receive errors like:
28 Answers
28
...
What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
php is null or empty?
I have a question regarding NULL in PHP:
9 Answers
9
...