大约有 16,000 项符合查询结果（耗时：0.0322秒） [XML]
Do I have to guard against SQL injection if I used a dropdown?
... can validate that the POST value contains an integer, and use an array to convert that to text when needed. E.g:
<?php
// No, you don't need to specify the numbers in the array but as we're using them I always find having them visually there helpful.
$sizes = array(0 => 'All', 1 => 'Large...
Can I use if (pointer) instead of if (pointer != NULL)?
...
You can; the null pointer is implicitly converted into boolean false while non-null pointers are converted into true. From the C++11 standard, section on Boolean Conversions:
A prvalue of arithmetic, unscoped enumeration, pointer, or pointer to member type can ...
Set transparent background using ImageMagick and commandline prompt
...mageMagick 6.6.9-7 on Ubuntu 12.04.
What worked for me was the following:
convert test.png -transparent white transparent.png
That changed all the white in the test.png to transparent.
share
|
im...
How do I convert an object to an array?
...
Single-dimensional arrays
For converting single-dimension arrays, you can cast using (array) or there's get_object_vars, which Benoit mentioned in
his answer.
// Cast to an array
$array = (array) $object;
// get_object_vars
$array = get_object_vars(...
How does having a dynamic variable affect performance?
..., int, etc? As I recall you mentioned in there how/why using dynamic with Convert.ToXXX causes the compiler to fire up. I'm sure I'm butchering the details, but hopefully you know what I'm talking about.
– Adam Rackis
Sep 20 '11 at 15:49
...
iOS: Convert UTC NSDate to local Timezone
How do I convert a UTC NSDate to local timezone NSDate in Objective C or/and Swift?
13 Answers
...
Converting Mercurial folder to a Git repository
...
Windows: TortoiseHG Hg-Git extension
Hg-Git can be used to convert a Mercurial repository to Git. You can use a local repository or a remote repository accessed via SSH, HTTP or HTTPS.
Example of local repositories conversion.
Install Hg-Git.
On Windows, TortoiseHg comes with Hg...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
...
JodaTime
To convert JodaTime's org.joda.time.LocalDate to java.sql.Timestamp, just do
Timestamp timestamp = new Timestamp(localDate.toDateTimeAtStartOfDay().getMillis());
To convert JodaTime's org.joda.time.LocalDateTime to java.sql.Tim...
Get last element of Stream/List in a one-liner
...
And you can easily convert a stream to an iterable: Iterables.getLast(() -> data.careas.stream().filter(c -> c.bbox.orientationHorizontal).iterator())
– shmosel
Feb 12 at 20:55
...
How do I measure separate CPU core usage for a process?
...ike this (on a quad-core processor):
10:54:41 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
10:54:42 PM all 8.20 0.12 0.75 0.00 0.00 0.00 0.00 0.00 90.93
10:54:42 PM 0 24.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 7...