Categories:
.NET (357)
C (330)
C++ (183)
CSS (84)
DBA (2)
General (7)
HTML (4)
Java (574)
JavaScript (106)
JSP (66)
Oracle (114)
Perl (46)
Perl (1)
PHP (1)
PL/SQL (1)
RSS (51)
Software QA (13)
SQL Server (1)
Windows (1)
XHTML (173)
Other Resources:
How Do You If a Key Is Defined in an Array
How Do You If a Key Is Defined in an Array? - PHP Script Tips - PHP Built-in Functions for Arrays
✍: FYIcenter.com
There are two functions can be used to test if a key is defined in an array or not:
Here is a PHP example script:
<?php $array = array("Zero"=>"PHP", "One"=>"Perl", "Two"=>"Java"); print("Is 'One' defined? ".array_key_exists("One", $array)."\n"); print("Is '1' defined? ".array_key_exists("1", $array)."\n"); print("Is 'Two' defined? ".isset($array["Two"])."\n"); print("Is '2' defined? ".isset($array[2])."\n"); ?>
This script will print:
Is 'One' defined? 1 Is '1' defined? Is 'Two' defined? 1 Is '2' defined?
2007-04-20, 4818👍, 0💬
Popular Posts:
What is V model in testing? V model map’s the type of test to the stage of development in a project....
WHat will be the result of the following code? #define TRUE 0 // some code while (TRUE) { // some co...
Which are the various programming approaches for WCF?
.NET INTERVIEW QUESTIONS - What are Daemon threads and how can a thread be created as Daemon? Daemon...
What is Traceability Matrix? Traceability Matrix is one of the document will prepare by QA.To make s...