PHP Variables and Datatypes , PHP

PHP Variables and Datatypes

Question: <?php $string = "111221"; for($i = 0; $i < strlen($string); $i++) { $current = $string[$i]; $count = 1; while(isset($string[$i + $count]) && ($string[$i + $count] == $current)) $count++; $newstring .= "$count{$current}"; $i += $count-1; } print $newstring; ?>
A
312211

B
3312212

C
11221221

D
221131

E
3211122

Note: Not available
1. Report
Question: What is the best way to ensure that a user-defined function is always passed an object as its single parameter?
A
function myfunction(stdClass $a)

B
function myfunciton($a = stdClass)

C
Use is_object() within the function

D
There is no way to ensure the parameter will be an object

E
<label for="10_5">function myfunction(Object $a)</label>

Note: Not available
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Question: What would go in place of ?????? below to make this script execute without a fatal error? <?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>
A
quit();

B
die();

C
stop();

D
__halt_compiler();

E
exit();

Note: Not available
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Question: Type-hinting and the instanceof keyword can be used to check what types of things about variables?
A
If a particular child class extends from it

B
If they are an instance of a particular interface

C
If they are an abstract class

D
If they have a particular parent class

E
If they are an instance of a particular class

Note: Not available
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Question: What three special methods can be used to perform special logic in the event a particular accessed method or member variable is not found?
A
__get($variable)

B
__call($method, $params)

C
__get($method)

D
__set($variable, $value)

E
__call($method)

Note: Not available
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Question: Which symbol is used for variable declaration?
A
#

B
$

C
@

D
%

Note: Not available
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Question: What is the output of the following:
$str= "good"; $$str= "bye"; echo ${$str};
A
good

B
bye

C
good bye

D
None

Note: Not available
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Question: Which of the following fall into compound data type categories?
A
Array and object

B
Resource and null

C
Array and null

D
Resource and object

Note: Not available
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Question: Which of the following fall into special data type category?
A
Array and object

B
Resource and null

C
Array and null

D
Resource and object

Note: Not available
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Question: Which is the correct output of the following script?
$model="Toyota"; $obj=(object) $model; print $obj->scalar;
A
Fatal Error

B
Object

C
Toyota

D
Warning: Scalar property is not defined in the object

Note: Not available
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Question: <?php $string = "111221"; for($i = 0; $i < strlen($string); $i++) { $current = $string[$i]; $count = 1; while(isset($string[$i + $count]) && ($string[$i + $count] == $current)) $count++; $newstring .= "$count{$current}"; $i += $count-1; } print $newstring; ?>

Question: What is the best way to ensure that a user-defined function is always passed an object as its single parameter?

Question: What would go in place of ?????? below to make this script execute without a fatal error? <?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>

Question: Type-hinting and the instanceof keyword can be used to check what types of things about variables?

Question: What three special methods can be used to perform special logic in the event a particular accessed method or member variable is not found?

Question: Which symbol is used for variable declaration?

Question: What is the output of the following:
$str= "good"; $$str= "bye"; echo ${$str};

Question: Which of the following fall into compound data type categories?

Question: Which of the following fall into special data type category?

Question: Which is the correct output of the following script?
$model="Toyota"; $obj=(object) $model; print $obj->scalar;

Question: <?php $string = "111221"; for($i = 0; $i < strlen($string); $i++) { $current = $string[$i]; $count = 1; while(isset($string[$i + $count]) && ($string[$i + $count] == $current)) $count++; $newstring .= "$count{$current}"; $i += $count-1; } print $newstring; ?>

Question: What is the best way to ensure that a user-defined function is always passed an object as its single parameter?

Question: What would go in place of ?????? below to make this script execute without a fatal error? <?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>

Question: Type-hinting and the instanceof keyword can be used to check what types of things about variables?

Question: What three special methods can be used to perform special logic in the event a particular accessed method or member variable is not found?

Question: Which symbol is used for variable declaration?

Question: What is the output of the following:$str= "good"; $$str= "bye"; echo ${$str};

Question: Which of the following fall into compound data type categories?

Question: Which of the following fall into special data type category?

Question: Which is the correct output of the following script?$model="Toyota"; $obj=(object) $model; print $obj->scalar;

Question: What is the output of the following:
$str= "good"; $$str= "bye"; echo ${$str};

Question: Which is the correct output of the following script?
$model="Toyota"; $obj=(object) $model; print $obj->scalar;