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In php, is 0 treated as empty?
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http://php.net/empty
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a variabl...
PHP equivalent of .NET/Java's toString()
How do I convert the value of a PHP variable to string?
24 Answers
24
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Aliases in Windows command prompt
...to write the whole directory anymore.
DOSKEY gsp="C:\Program Files (x86)\Sketchpad5\GSP505en.exe"
DOSKEY alias=notepad %USERPROFILE%\Dropbox\alias.cmd
:: Common directories
DOSKEY dropbox=cd "%USERPROFILE%\Dropbox\$*"
DOSKEY research=cd %USERPROFILE%\Dropbox\Research\
Note that the $* syntax ...
How to round up a number to nearest 10?
How can we round off a number to the nearest 10 in php?
16 Answers
16
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Easy way to test a URL for 404 in PHP?
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If you are using PHP's curl bindings, you can check the error code using curl_getinfo as such:
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
/* Get the HTML or whatever is linked in $url. */
$response = cur...
Stop Excel from automatically converting certain text values to dates
...P, Unicode U+200B)
is not a big hindrance when viewing the CSV in Notepad (etc),
and could be removed by find/replace in Excel (or Notepad etc).
You don't need to import the CSV, but can simply double-click to open the CSV in Excel.
If there's a reason you don't want to use the tab, look in an Uni...
Getting HTTP code in PHP using curl
...lso helps with following redirects):
How can I check if a URL exists via PHP?
As a whole:
$url = 'http://www.example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, true); // we want headers
curl_setopt($ch, CURLOPT_NOBODY, true); // we don't need body
curl_setopt($ch, CUR...
How to compare two dates in php
How to compare two dates in php if dates are in format '03_01_12' and '31_12_11' .
15 Answers
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Only variables should be passed by reference
...file_name) cannot be turned into a reference. This is a restriction in the PHP language, that probably exists for simplicity reasons.
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