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PHP Quick Reference
Escape sequences for print output:
\" - double quote \' - single quote \n - new line \t - tab \r - carriage return \$ - dollar sign \\ - backslash
Max integer and float size (overflow):
//on a 32-bit system $large_number = 2147483647; var_dump($large_number); // int(2147483647) $large_number = 2147483648; var_dump($large_number); // float(2147483648) $million = 1000000; $large_number = 50000 * $million; var_dump($large_number); // float(50000000000) //on a 64-bit system $large_number = 9223372036854775807; var_dump($large_number); // int(9223372036854775807) $large_number = 9223372036854775808; var_dump($large_number); // float(9.2233720368548E+18) $million = 1000000; $large_number = 50000000000000 * $million; var_dump($large_number); // float(5.0E+19)
generate random number:
echo rand() . "\n"; echo rand() . "\n"; echo rand(5, 15);
Get Current Page Name:
function curPageName() {
return substr($_SERVER["SCRIPT_NAME"],strrpos($_SERVER["SCRIPT_NAME"],"/")+1);
}
Came across the following on stackoverflow while looking for the PHP equivalent of string.format.
Sprintf (similar to php printf, in c# string.format):
$filter = "content:%1$s title:%1$s^4.0 path.title:%1$s^4.0 description:%1$s ...";
$filter = sprintf($filter, "Cheese");
//OR
function format() {
$args = func_get_args();
if (count($args) == 0) {
return;
}
if (count($args) == 1) {
return $args[0];
}
$str = array_shift($args);
$str = preg_replace_callback('/\\{(0|[1-9]\\d*)\\}/', create_function('$match', '$args = '.var_export($args, true).'; return isset($args[$match[1]]) ? $args[$match[1]] : $match[0];'), $str);
return $str;
}
References
StackOverflow, “C# String.Format() Equivalent in PHP?”,
WebCheatSheet, http://www.webcheatsheet.com/PHP/get_current_page_url.php
PHP.Net, http://php.net
Get Current Page Name in ASP .NET
The code snippet below is a quick, easy to use function which allows you to get the current active page in an asp .net website/application.
There are similar functions for getting header information about a page, however, after some research I found the direct info I was looking for was much easier to retrieve using this method.
Enoy. 😉
VB .NET
Public Function GetCurrentPageName() As String Dim strPath As String = System.Web.HttpContext.Current.Request.Url.AbsolutePath Dim oInfo As New System.IO.FileInfo(strPath) Dim strPageName As String = oInfo.strPageName Return strPageName End Function
C#
public string GetCurrentPageName()
{
string spath = System.Web.HttpContext.Current.Request.Url.AbsolutePath;
System.IO.FileInfo oInfo = new System.IO.FileInfo(spath);
string spagename = oInfo.Name;
return spagename;
}
Out of Office Reply 