• When exit() is called
• When the execution reaches the end of the current file
• When PHP crashes
• When Apache terminates because of a system problem
• I don’t know

Answer:
When exit() is called

• It converts them to a common compatible data type and then compares the resulting values
• It returns True only if they are both of the same type and value
• If the two values are strings, it performs a lexical comparison
• It bases its comparison on the C strcmp function exclusively
• It converts both values to strings and compares them
• I don’t know

Answer:
It returns True only if they are both of the same type and value

• include_once, include
• require, include
• require_once, include
• include, require
• All of the above are correct
• I don’t know

Answer:
All of the above are correct

<?php
$myarray = array ("My String",
"Another String",
"Hi, Mom!");
?>

• Using a for loop
• Using a foreach loop
• Using a while loop
• Using a do…while loop
• There is no way to accomplish this goal
• I don’t know

Answer:
Using a foreach loop

<?php
if($a == 'a') {
    somefunction();
} else if ($a == 'b') {
   anotherfunction();
} else if ($a == 'c') {
   dosomething();
} else {
   donothing();
}
?>

• A switch statement without a default case
• A recursive function call
• A while statement
• It is the only representation of this logic
• A switch statement using a default case
• I don’t know

Answer:
A switch statement using a default case

• print() can be used as part of an expression, while echo() can’t
• echo() can be used as part of an expression, while print() can’t
• echo() can be used in the CLI version of PHP, while print() can’t
• print() can be used in the CLI version of PHP, while echo() can’t
• There’s no difference: there are alias
• I don’t know

Answer:
print() can be used as part of an expression, while echo() can’t

• It deletes a file
• It deletes a directory
• It unsets a variable
• It removes a database row
• This function does not exist!
• I don’t know

Answer:
It deletes a file

• The interpreter outputs a type mismatch error
• The string is converted to a number and added to the integer
• The string is discarded and the integer is preserved
• The integer and string are concatenated together in a new string
• The integer is discarded and the string is preserved
• I don’t know

Answer:
The string is discarded and the integer is preserved

<?php
$s = '12345';
$s[$s[1]] = '2';
echo $s;
?>

• 12345
• 12245
• 22345
• 11345
• Array
• I don’t know

Answer:
12245