騰訊 2021年PHP工程師面試題

Question 1 What does print out??

A) 3 B) False C) Null D) 1 E) 0

Which of the following snippets prints a representation of 42 with two decimal places??

A) printf("%.2d\n", 42);?

B) printf("%1.2f\n", 42);?

C) printf("%1.2u\n", 42);

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,?':')

What?is?the?value?of?$a??

?>?

A)?True?

B)?False

What?is?the?value?of?$result?in?the?following?PHP?code?

?

?

function?timesTwo($int)?{

?

$int?=?$int?*?2;

?

}

?

$int?=?2;

?

$result?=?timesTwo($int);

?

?>;

NULL

The?code?below? ?because ? ? . C

?

?>?

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?blocks.