大约有 40,000 项符合查询结果(耗时:0.0399秒) [XML]

https://stackoverflow.com/ques... 

Difference between $.ajax() and $.get() and $.load()

...imes very useful. You have to deal with the returned data yourself with a callback. $.get() is just a shorthand for $.ajax() but abstracts some of the configurations away, setting reasonable default values for what it hides from you. Returns the data to a callback. It only allows GET-requests so is...
https://stackoverflow.com/ques... 

PHP - iterate on string characters

... Just note that you're calling strlen() on each iteration. Not a terrible thing, since PHP has the length precalculated, but still a function call. If you have a need for speed, better save that in a variable before starting the loop. ...
https://stackoverflow.com/ques... 

What's better to use in PHP, $array[] = $value or array_push($array, $value)?

... No benchmarks, but I personally feel like $array[] is cleaner to look at, and honestly splitting hairs over milliseconds is pretty irrelevant unless you plan on appending hundreds of thousands of strings to your array. Edit: Ran this code: $t = microti...
https://stackoverflow.com/ques... 

Difference between array_map, array_walk and array_filter

...ray_filter . What I could see from documentation is that you could pass a callback function to perform an action on the supplied array. But I don't seem to find any particular difference between them. ...
https://stackoverflow.com/ques... 

Multi-line strings in PHP

...ng spanning multiple lines using heredoc syntax. $var is replaced automatically. EOD; A Nowdoc is like a Heredoc, but it doesn't replace variables. $str = <<<'EOD' Example of string spanning multiple lines using nowdoc syntax. $var is NOT replaced in a nowdoc. EOD; Beware that the end ...
https://stackoverflow.com/ques... 

Change all files and folders permissions of a directory to 644/755

How would I change all files to 644 and all folders to 755 using chmod from the linux command prompt? (Terminal) 8 Answ...
https://stackoverflow.com/ques... 

Remove all files except some from a directory

When using sudo rm -r , how can I delete all files, with the exception of the following: 19 Answers ...
https://stackoverflow.com/ques... 

what is faster: in_array or isset? [closed]

... value until it finds a match. Being an opcode, it has less overhead than calling the in_array built-in function. These can be demonstrated by using an array with values (10,000 in the test below), forcing in_array to do more searching. isset: 0.009623 in_array: 1.738441 This builds on Jason...
https://stackoverflow.com/ques... 

Apache shows PHP code instead of executing it

I have recently been trying to install PHP and Apache on my computer. After many hours, they're installed. I have modified the httpd.conf and php.ini files like everyone says. I then created a simple PHP script: ...
https://stackoverflow.com/ques... 

'AND' vs '&&' as operator

... If you use AND and OR, you'll eventually get tripped up by something like this: $this_one = true; $that = false; $truthiness = $this_one and $that; Want to guess what $truthiness equals? If you said false... bzzzt, sorry, wrong! $truthiness above has the ...