Answer & Solution
Answer: Option A
Solution:
The
strlen() function in PHP returns the length of a string.
Q
What does the
strlen() function do in PHP?
Related Questions on Average
Which of the following is true about PHP variables?
A). Variables must be declared before use
B). Variable names are case-insensitive
C). Variables cannot be reassigned
D). Variables can only store integers
Which of the following is NOT a valid PHP comparison operator?
A). <=
B). ==
C). <>
D). !
Which of the following PHP tags is used to start and end a block of PHP code?
A). <?php ?>
B). <? ?>
C). <script>
D). <php >
Which of the following statements is true about PHP comments?
A). Comments are ignored by the PHP interpreter
B). Comments can only be single-line
C). Comments must start with /* and end with */
D). Comments are displayed on the webpage
What is the correct syntax to start a PHP script?
A). <?php
B). <script>
C). <?>
D). <!DOCTYPE php>
What is the purpose of the PHP include statement?
A). To include and evaluate an external PHP file
B). To create a loop in PHP
C). To define a function in PHP
D). To execute a SQL query
What is the purpose of the PHP print_r() function?
A). To print human-readable information about a variable
B). To redirect output to a file
C). To execute SQL queries
D). To define a function in PHP
What is the purpose of the PHP unset() function?
A). To destroy a specified variable
B). To create an array in PHP
C). To execute SQL queries
D). To define a function in PHP
Which of the following symbols is used to concatenate strings in PHP?
A). +
B). <>
C). .
D). -
What does the phpinfo() function do in PHP?
A). Displays information about the PHP environment
B). Executes SQL queries
C). Validates user input
D). Encrypts data transmission