- How can we extract string 'abc.com ' from a string http://info@abc.com using regular expression of php?
- What is the difference between the functions unlink and unset?
- How come the code works, but doesn’t for two-dimensional array of mine?
- How can we register the variables into a session?
- What is the difference between characters \023 and \x23?
- With a heredoc syntax, do I get variable substitution inside the heredoc contents?
- How can we submit form without a submit button?
- How can we create a database using PHP and mysql?
- How many ways we can retrieve the date in result set of mysql using php?
- Can we use include ("abc.php") two times in a php page "makeit.php"?
How can we extract string 'abc.com ' from a string http://info@abc.com using regular expression of php?
We can use the preg_match() function with "/.*@(.*)$/" as
the regular expression pattern. For example:
preg_match("/.*@(.*)$/","http://info@abc.com",$data);
echo $data[1];
What is the difference between the functions unlink and unset?unlink() is a function for file system handling. It will simply delete the file in context.
unset() is a function for variable management. It will make a variable undefined.How come the code works, but doesn’t for two-dimensional array of mine?Any time you have an array with more than one dimension, complex parsing syntax is required. print "Contents: {$arr[1][2]}" would’ve worked.How can we register the variables into a session?session_register($session_var);
$_SESSION['var'] = 'value';What is the difference between characters \023 and \x23?The first one is octal 23, the second is hex 23.With a heredoc syntax, do I get variable substitution inside the heredoc contents?Yes.How can we submit form without a submit button?We can use a simple JavaScript code linked to an event trigger of any form field. In the JavaScript code, we can call the document.form.submit() function to submit the form. For example: How can we create a database using PHP and mysql?We can create MySQL database with the use of mysql_create_db($databaseName) to create a database.How many ways we can retrieve the date in result set of mysql using php?As individual objects so single record or as a set or arrays.Can we use include ("abc.php") two times in a php page "makeit.php"?Yes.For Previous Parts click below links
PHP Interview Questions with Answers Part 4
PHP Interview Questions with Answers Part 3
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