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PHP Regular Expressions

PHP Regular Expressions
Which one of the following is not a preg PHP function?

preg_match_all
preg_matchall
preg_split
preg_match

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PHP Regular Expressions
Say we have two compare two strings which of the following function/functions can you use?
1. strcmp()
2. strcasecmp()
3. strspn()
4. strcspn()

All of the mentioned
1 and 2
3 and 4
None of the mentioned

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PHP Regular Expressions
Which one of the following preg PHP functions is used to take a string, and put it in an array?

preg_unchain()
preg_destroy()
preg_divide()
preg_split()

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PHP Regular Expressions
PHP has long supported two regular expression implementations known as _______ and _______.
1. Perl
2. PEAR
3. Pearl
4. POSIX

2 and 3
1 and 2
2 and 4
1 and 4

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PHP Regular Expressions
Parameter flags was added in which version of PHP?

PHP 4.2
PHP 4.3
PHP 4.1
PHP 4.0

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PHP Regular Expressions
What will be the output of the following PHP code?
$url = "contact@examians.com";
echo ltrim(strstr($url, "@"),"@");

contact@
contact@examians.com
examians.com
contact

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