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PHP LAMP Engineer Test Paper
Question 1
What does <? echo count ("123") ?> print out?
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A) 3 o
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B) False g
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C) Null n
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D) 1 n
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E) 0 w.
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Question 2 w
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Which of the following snippets prints a representation of 42 with two decimal places?
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A) printf("%.2d\n", 42);
B) printf("%1.2f\n", 42);
C) printf("%1.2u\n", 42);
Question 3
Given
$text = 'Content-Type: text/xml';
Which of the following prints 'text/xml'?
A) print substr($text, strchr($text, ':'));
B) print substr($text, strchr($text, ':') + 1);
C) print substr($text, strpos($text, ':') + 1);
D) print substr($text, strpos($text, ':') + 2);
E) print substr($text, 0, strchr($text, ':')Question 4
What is the value of $a?
<?php
$a = in_array('01', array('1')) == var_dump('01' == 1);
?>
A) True
B) False
Question 5
What is the value of $result in the following PHP code?
<?php
function timesTwo($int) {
$int = $int * 2;
}
$int = 2;
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$result = timesTwo($int); c
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Answer: NULL e r
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Question 6
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The code below _________
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__ b ecause ____________. C
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<?php
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class Foo {
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?>
<?php
function bar() {
print "bar";
}
}
?>
A) will work, class definitions can be split up into multiple PHP blocks.
B) will not work, class definitions must be in a single PHP block.
C) will not work, class definitions must be in a single file but can be in multiple PHP
blocks.
D) will work, class definitions can be split up into multiple files and multiple PHP
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