大约有 37,000 项符合查询结果（耗时：0.0639秒） [XML]
Checking if a variable is an integer
...cob Relkin
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In JavaScript, does it make a difference if I call a function with parentheses?
...not using ()'s
Lets take this function for example:
function foo(){
return 123;
}
if you log "foo" - without ()
console.log(foo);
---outout------
function foo(){
return 123;
}
Using no () means to fetch the function itself. You would do this if you want it to be passed along as a callback.
if ...
How to remove all leading zeroes in a string
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Not strange. Integers in php go up to 2^31, which is 2147483647. For any larger numbers, you'll have to use lonesomeday's string-based solution.
– awm
Feb 23 '11 at 23:41
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程序员之网络安全系列（二）：如何安全保存用户密码及哈希算法 - 更多技术 ...
...来我才想起可以用穷举法，最多就999次不就打开了？那么问题来了，你的密码箱还安全吗？
彩虹表
除了穷举法外，由于之前的密码泄露，那么攻击者们，手上都有大量的彩虹表，比如”I love you”,生日等等，这个表保存了这些...
href image link download on click
...
<a href="download.php?file=path/<?=$row['file_name']?>">Download</a>
download.php:
<?php
$file = $_GET['file'];
download_file($file);
function download_file( $fullPath ){
// Must be fresh start
if( headers_sent()...
Insert current date in datetime format mySQL
..."INSERT INTO `table` (`dateposted`) VALUES (now())");
If you need to use PHP to do it, the format it Y-m-d H:i:s so try
$date = date('Y-m-d H:i:s');
mysql_query("INSERT INTO `table` (`dateposted`) VALUES ('$date')");
sha...
How to get a one-dimensional scalar array as a doctrine dql query result?
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PHP < 5.5
You can use array_map, and since you only have on item per array, you can elegantly use
'current' as callback, instead of writing a closure.
$result = $em->createQuery("SELECT a.id FROM Auction a")->getS...
Can I use require(“path”).join to safely concatenate urls?
...oin');
var fullUrl = urljoin('http://www.google.com', 'a', '/b/cd', '?foo=123');
console.log(fullUrl);
Prints:
'http://www.google.com/a/b/cd?foo=123'
share
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improve this answer
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...
using href links inside tag
...name="forma" onchange="location = this.value;">
<option value="Home.php">Home</option>
<option value="Contact.php">Contact</option>
<option value="Sitemap.php">Sitemap</option>
</select>
UPDATE (Nov 2015): In this day and age if you want to have a dr...
htaccess Access-Control-Allow-Origin
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from my experience;
if it doesn't work from within php do this in .htaccess it worked for me
<IfModule mod_headers.c>
Header set Access-Control-Allow-Origin http://www.vknyvz.com
Header set Access-Control-Allow-Credentials true
</IfModule>
credential...