what is continue 2 in php?
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continue is used within looping structures to skip the rest of the current loop iteration and continue execution at the condition evaluation and then the beginning of the next iteration. ... If a switch is inside a loop, continue 2 will continue with the next iteration of the outer loop.
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There IS a difference guys. DIE() can be used with other failable functions whereas echoing would need to caught as an error or exception.
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['PHP can generate dynamic page content.', 'PHP can create, open, read, write, delete, and close files on the server.', 'PHP can collect form data.', 'PHP can send and receive cookies.', 'PHP can add, delete, modify data in your database.', 'PHP can be used to control user-access.', 'PHP can encrypt data.']
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The WHILE loop statement continues to execute the statements between the LOOP and END LOOP as long as the condition in the WHILE clause evaluates to TRUE . PL/SQL evaluates the condition in the WHILE clause before each loop iteration. If the condition is TRUE , then the loop body executes.
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['break causes the control flow to exit current loop body (as if the loop condition has just evaluated to false)', 'continue causes the control flow to jump to the loop condition (for while, do while loops) or to the update (for for loops). This causes control flow to jump to the next iteration.']
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The fclose() function in PHP is an inbuilt function which is used to close a file which is pointed by an open file pointer. The fclose() function returns true on success and false on failure. It takes the file as an argument which has to be closed and closes that file.
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PHP context switching. ... Context switching is you open PHP tags, you write a little bit of a php code, then you close the tags, you go on with a little bit of HTML and go back to PHP and keep doing these switches quite frequently.
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['What is PHP? ... ', 'What types of loops exist in PHP? ... ', 'How do you display the output directly to the browser? ... ', 'Describe which programming language does PHP parallel to? ... ', 'How to create a MySQL connection? ... ', 'How to select a database? ... ', 'What is PEAR?']
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When the variable is evaluated, it returns False and then writes to host “Your string is NULL or EMPTY.” $String = '' If([string]::IsNullOrEmpty($String)){ Write-Host "Your string is NULL or EMPTY." } Else { Write-Host "Your string is not EMPTY." }
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In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.
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In PHP, people use single quote to define a constant string, like 'a' , 'my name' , 'abc xyz' , while using double quote to define a string contain identifier like "a $b $c $d" . echo "my $a"; This is true for other used of string.
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An offset is undefined if it doesn't exist in the array. The notice is thrown the first time you reference the element, then PHP initializes the element and sets it to NULL. ... You can test if an offset exists either through array_key_exists or using isset.
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Pre increment operator is used to increment variable value by 1 before assigning the value to the variable. Post increment operator is used to increment variable value by 1 after assigning the value to the variable.
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PHP is case insensitive for the class naming. it means you can normally do $file = new file() even if the class is named File and vice-versa.
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The explode function in PHP allows us to break a string into smaller text with each break occurring at the same symbol. ... The explode() function breaks a string into an array, but the implode function returns a string from the elements of an array.
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php" method="get"> Name :<select name="name"> <option value="name1">name1</option> <option value="name2">name2</option> <option value="name3">name3</option> <option value="name4">name4</option> </select><br> <input type="submit" name="submit" value="Insert"> </form> </body> </html> <?
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PHP | fwrite( ) Function. The fwrite() function in PHP is an inbuilt function which is used to write to an open file. ... The file, string and the length which has to be written are sent as parameters to the fwrite() function and it returns the number of bytes written on success, or FALSE on failure.