大约有 31,000 项符合查询结果（耗时：0.0571秒） [XML]
Why exactly is eval evil?
...estion is not specific to LISP. Here is an answer on the same question for PHP, and it applies to LISP, Ruby, and other other language that has an eval:
The main problems with eval() are:
Potential unsafe input. Passing an untrusted parameter is a way to
fail. It is often not a trivial...
What is the difference between POST and GET? [duplicate]
I've only recently been getting involved with PHP/AJAX/jQuery and it seems to me that an important part of these technologies is that of POST and GET .
...
How do I add a tool tip to a span element?
...article aided in my confusion : htmlgoodies.com/tutorials/html_401/article.php/3479661/… where it says that the tooltip works for the "text"
– Augiwan
Jan 23 '13 at 13:50
1
...
Wolfram's Rule 34 in XKCD [closed]
...d with these unique CA:
http://lucasoman.com/files/projects/caeditor/caed.php
As you can see by playing with it, you can randomly toggle any block, which alters every
block below it according to the rules. It's kind of a neat way to see the chain reaction
caused by aberrations in the process.
H...
File Upload in WebView
... it has an image preview feature, if you want to make it work use a simple php upload without preview.
Update:
Please find the solution for lollipop devices here and thanks for gauntface
Update 2:
Complete solution for all android devices till oreo here and this is more advanced version, you sh...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
...
With the PHP version of Markdown, you can also link headers to fragment identifiers within the page using a syntax like either of the following, as documented here
Header 1 {#header1}
========
## Header 2 ## {#header...
How to run a background task in a servlet based web application?
...
You can use cron4j. http://www.sauronsoftware.it/projects/cron4j/manual.php
share
|
improve this answer
|
follow
|
...
Image fingerprint to compare similarity of many images
...should definitely take a look at phash.
For image comparison there is this php project :
https://github.com/kennethrapp/phasher
And my little javascript clone:
https://redaktor.me/phasher/demo_js/index.html
Unfortunately this is "bitcount"-based but will recognize rotated images.
Another approach in...
ASP.NET MVC - Set custom IIdentity or IPrincipal
...
Coming from PHP, I've always put the information like UserID and other pieces needed to grant restricted access in Session. Storing it client-side makes me nervous, can you comment on why that won't be a problem?
–...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...
Both Perl and PHP use =>. I'd guess that Ruby, being heavily inspired by Perl, borrowed the syntax from Perl :)
– Daniel Serodio
Aug 7 '17 at 19:19
...