Gk Questions with AnswersPHP Interview Question and Answers
| 26. | In how many ways we can retrieve data in the result set of MYSQL using PHP? |
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| mysql_fetch_array: - Fetch a result row as an associative array, a numeric array, or both. mysql_fetch_assoc:- Fetch a result row as an associative array. mysql_fetch_object:- Fetch a result row as an object. mysql_fetch_row:- Get a result row as an enumerated array. | |
| 27. | What are encryption functions in PHP? |
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| CRYPT(), MD5() | |
| 28. | What is the functionality of the function htmlentities? |
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| htmlentities():- Convert all applicable characters to HTML entities This function is identical to htmlspecialchars() in all ways, except with htmlentities(), all characters which have HTML character entity equivalents are translated into these entities. | |
| 29. | How can we increase the execution time of a php script? |
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| By the use of void set_time_limit(int seconds) Set the number of seconds a script is allowed to run. If this is reached, the script returns a fatal error. The default limit is 30 seconds or, if it exists, the max_execution_time value defined in the php.ini. If seconds is set to zero, no time limit is imposed. When called, set_time_limit() restarts the timeout counter from zero. In other words, if the timeout is the default 30 seconds, and 25 seconds into script execution a call such as set_time_limit(20) is made, the script will run for a total of 45 seconds before timing out. | |
| 30. | How to set cookies? |
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| setcookie('variable','value','time'); variable - name of the cookie variable value - value of the cookie variable time - expiry time Example: <?php setcookie('Test',$i,time()+3600); ?> Test - cookie variable name $i - value of the variable 'Test' time()+3600 - denotes that the cookie will expire after an one hour |
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