PHP Interview Question If you read it then sure you can crack interview ,this session is also available on my YOU-TUBE CHANNEL or go www.shivatutorials.com 1)What is difference between echo and print? 2)What is  difference between ' ' and " " in PHP? 3)What is Super Global Variable in PHP? 4)What is Constant declaration in PHP? 5)What is Difference between Index Array ,Associative Array and Mixed array in PHP? 6)Write the name of five datatype function? 7)Write the name of five String function? 8)What is implode and explode function in PHP? 9)What is Curl and PEAR in PHP? 10)What json_encode and json_decode() in PHP? 11)What is implode and explode() in PHP? 12)How we can upload multiple files in PHP ? 13)Write the query to update and insert record into database ? 14)Write the query to check email id already exist with complete PHP Code? 15)What is difference between mysql and mysqli? 16)What is mysqli_fecth_row and mysqli_fetch_array()? 17)What is Ajax explain  AJAX ...