大约有 38,000 项符合查询结果（耗时：0.0285秒） [XML]
Is there an equivalent for var_dump (PHP) in Javascript?
...low.com/a/11315561/1403755 which is essentially a duplicate of print_r for php
– TorranceScott
Aug 14 '14 at 21:50
add a comment
|
...
What's the difference between a single precision and double precision floating point operation?
...ch precision they can store the numbers.
For example: I have to store 123.456789 One may be able to store only 123.4567 while other may be able to store the exact 123.456789.
So, basically we want to know how much accurately can the number be stored and is what we call precision.
Quoting @A...
Best practice multi language website
... of calling functions for every translation operation, which as we know in PHP is expensive, we define our base files with placeholders, then use a pre-processor to cache those files (we store the file modification time to make sure we're serving the latest content at all times).
The Translation Ta...
json_encode is returning NULL?
...
mysql_set_charset is better for the security reason since PHP 5.2.3. See php.net/manual/en/function.mysql-set-charset.php for the details.
– masakielastic
Jun 3 '13 at 4:07
...
Running a Python script from PHP
I'm trying to run a Python script from PHP using the following command:
9 Answers
9
...
Remove all files except some from a directory
...
rm !(textfile.txt|backup.tar.gz|script.php|database.sql|info.txt)
The extglob (Extended Pattern Matching) needs to be enabled in BASH (if it's not enabled):
shopt -s extglob
share
...
.htaccess mod_rewrite - how to exclude directory from rewrite rule
...les, so they can become accessible. For now all requests are sent to index.php file.
6 Answers
...
Why use sprintf function in PHP?
I am trying to learn more about the PHP function sprintf() but php.net did not help me much as I am still confused, why would you want to use it?
...
Two-way encryption: I need to store passwords that can be retrieved
...there is much more to note...
How do I encrypt and decrypt a password in PHP?
See below for a strong class that takes care of everything for you:
What is the safest algorithm to encrypt the passwords with?
safest? any of them. The safest method if you're going to encrypt is to protect against ...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...I delete a directory and its entire contents (files and subdirectories) in PHP?
21 Answers
...