PHP Built in Functions Quiz 1 Practice

Which function is used to remove white space or a character from the left of a string argument?

• ltrim
• rtrim
• trim
• str_replace
• str_ireplace

What does the strtolower($text) function do?

• Makes the $text argument all lowercase
• Makes the $text argument all uppercase
• Capitalizes the first letter of the $text argument.
• Counts the number of characters in $text
• Counts the number of words in $text

What does the strtouper($text) function do?

• Makes the $text argument all lowercase
• Makes the $text argument all uppercase
• Capitalizes the first letter of the $text argument.
• Counts the number of characters in $text
• Counts the number of words in $text

What does the ucwords($text) function do?

• Makes the $text argument all lowercase
• Makes the $text argument all uppercase
• Capitalizes the first letter of the $text argument.
• Counts the number of characters in $text
• Counts the number of words in $text

What does the strlen($text) function do?

• Makes the $text argument all lowercase
• Makes the $text argument all uppercase
• Capitalizes the first letter of the $text argument.
• Counts the number of characters in $text
• Counts the number of words in $text

What does the str_word_count($text) function do?

• Makes the $text argument all lowercase
• Makes the $text argument all uppercase
• Capitalizes the first letter of the $text argument.
• Counts the number of characters in $text
• Counts the number of words in $text

Which function is used to remove white space or a character from the right of a string argument?

• rtrim
• ltrim
• trim
• str_replace
• str_ireplace

Which function is used to remove white space or a character from both the right and the left of a string argument?

• trim
• ltrim
• rtrim
• str_replace
• str_ireplace

Which function is used to replace a substring with a different string and the case must match exactly?

• str_replace
• ltrim
• rtrim
• trim
• str_ireplace

Which function is used to replace a substring with a different string and is case insensitive?

• str_ireplace
• ltrim
• rtrim
• trim
• str_replace