There are lots of built-in functions in PHP, but some of them are few well known as they are most useful for all PHP Programmers. Here, You will find cool PHP functions.
1.. highlight_string() :-
Most Useful PHP Functions
1.. highlight_string() :-
highlight_string() function is really helpful while displaying PHP code. It provides a syntax highlighted version for the given PHP code with the use of colors defined in the built-in syntax highlighter for PHP.
Usage :-
<?php
highlight_string('<?php phpinfo(); ?>');
?>
Click Here to check documentation
2.. str_word_count() :-
The str_word_count() function takes a string as a parameter and return the count of words, as per below example.
Usage :-
?php
$str = "How many words do I have?";
echo str_word_count($str); //Outputs 5
?>
Click Here to check documentation
3.. checkdate() :-
checkedate is a very useful to test a valid date submitted by an user. Checks the validity of the date formed by trhe arguments. You need to defined parameter properly to considered a valid date.
Usage :-
<?php
var_dump(checkdate(12, 31, 2000));
var_dump(checkdate(2, 29, 2001));
//Output
//bool(true)
//bool(false)
?>
Click Here to check documentation
4.. get_defined_vars() :-
get_defined_vars is a very handy function while debugging. It offers a multidimensional array with a list of all defined variables, user-defined variables, server variables, within the scope that get_defined_vars() is called.
Usage :-
print_r(get_defined_vars());
Click Here to check documentation
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