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PHP FILTER

PHP Filter
Which of the following is/are an external data?
1. Cookies
2. Input data from a form
3. Server Variables
4. Web services data

2 and 3
All of the mentioned
Only 2
None of the mentioned

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PHP Filter
How many types of filtering are present in PHP?

None
2
3
4

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PHP Filter
Which one of the following filter is used to filter several variables with the same or different filters?

filter_input_array
filter_var_array()
filter_input
filter_var()

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PHP Filter
What will be the output of the following PHP code?
$num = "123";
if (!filter_var($num, FILTER_VALIDATE_INT))
echo("Integer is not valid");
else
echo("Integer is valid");

Integer is not valid
No output is returned
Error
Integer is valid

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PHP Filter
Which one of the following does not describe a validating filter?

Are used to validate user input
Strict format rules
Are used to allow or disallow specified characters in a string
Returns the expected type on success or FALSE on failure

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