What are the difference between array_keys() and array_key_exists() in php?

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Does wordpress still use php?

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Write a program in php to print a table of a number?

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<?php include ("db.php"); $result = mysql_query("SELECT ques_id FROM questionbank order by ques_id limit 5 "); while($obj=mysql_fetch_array($result)) { $ad1[$obj['ques_id']]++;//Used an array and inserted the database query results into it. } $rand_keys=array_rand($ad1,1); //Did a random array function echo "First random id = ".$ad1[$rand_keys[0]]; echo "<br>Second random id = ".$ad1[$rand_keys[1]]; ?> <!--Its not working. Have any solution for this. -->

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What is session and Cokkies . How it works . tell some thing about Session_id()

1 Answers   DVS, Net Solution, PVWEBCO,

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What is foreach loop in php?

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What is faster?

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How about integrating an iKode Newsletter Server at my independent Wordpress blog site? I just wanna visitort can subscribe my blog when they like it and I can send some interested articles or events to them regularly to establish good relationship.

1 Answers   iKode,

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How does the identity operator === compare two values?

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what is variable scope, which variables are accessible from where and what are "undefined variable" errors?

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What is mod_php?

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What are getters and setters php?

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