PHP Welling 1-5

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Calls to PHP Functions:

are case-insensitive

How does the PHP engine process whitespace?

Ignores it

Which of the following fopen() file modes denotes 'cautious write'?

X

What is the most common delimiter in PCRE regular expressions?

/

Which of the following symbol represents a single-line comment in PHP?

//

PHP indexes start at ________ by default.

0

In PHP writing data to a file requires how many steps?

3

What is the result of the statement echo strlen("hello");?

5

Which of the following is an example of a short-style PHP tag?

<? echo '<p>Order processed.</p>'; ?>

Which of the following PHP data types stores only true or false values?

Boolean

Which of the following conversion specification type codes interprets as an integer and prints as a character?

C

Which of the following is a PHP function used to declare constants?

Define

Which of the following represents a reading lock of the flock() function?

LOCK_SH

An array containing other arrays is known as a(n) ___________ array.

Multidimensional

In PHP which bitwise operation is signified by the pipe (|) character?

OR

Which of the following statements is true concerning PHP functions?

PHP function names cannot begin with a digit.

What is the role of 'foo' in the PHP statement function('foo');?

Parameter

A PHP function's __________ lists its parameters and data types.

Prototype

MySQL is an example of a(n):

RDBMS

What kind of PHP variable stores a single value?

Scalar

The expression $test = substr_replace($test, 'X', -1); replaces:

The last character in $test

Which of the following regex tokens anchors your match to the beginning of the subject string?

^

PHP string interpolation requires:

double quotation marks

In PHP a while loop tests for the end of the file by using which function?

feof()

To open a file in PHP you use the _________ function

fopen()

The _________ function reads an arbitrary number of bytes from a file.

fread()

The trim() function removes whitespace:

from the start and end of a string

The three different PHP sorting functions are sort() asort(), and

ksort()

The __________ construct can be used to split an array into a number of values.

list()

PHP variables that are declared inside a function are known as:

local variables

Which PHP function takes a string as a parameter and replaces all the newlines in it with the HTML<br /> tag?

n12br()

In PHP the normal way that function parameters are called is known as:

pass by value

Disable PHP from opening files via fopen() and FTP by editing:

php.ini

Which of the following is a PHP statement that allows you to load a file into your PHP script?

require()

The PHP keyword return:

stops the execution of a function

Which of the following PHP array operators signifies non-identity?

!==

Which of the following statements is false concerning PHP identifiers?

Identifiers are case insensitive.

Which of the following statements tests for equality between the PHP variables $a and $b?

$a == $b

Which of the following PHP expressions can get the domain name from a customer's email address?

$email_array = explode('@', $email);

Which of the following expression shows a correct PHP array definition?

$products = ['Tires', 'Oil', 'Spark Plugs'];

Which of the following represents the HTML encoding of >?

&gt;

The statement $products{0} access the ________ element in an array.

First

A PHP function that calls itself is known as a _________ function.

Recursive

The PHP constant ____________ will sort an array as strings depending on the current locale.

SORT_LOCALE_STRING

Which of the following is NOT a problem of working with flat files in PHP?

When a file becomes small, working with it can be very slow

The _________ function modifies every element in an array the same way.

array_walk()

Which of the following is a php.ini directive that points to a header file?

auto_prepend_file

Which of the following is an alternative to the PHP file_put_contents() function?

fwrite()

Which of the following is an alias for the chop() PHP function?

rtrim()

What is the purpose of the semicolon in PHP?

statement termination


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