How can I use a regular expression to match a pattern in a string in PHP? Example code:

Listen

$string = "The quick brown fox jumps over the lazy dog";

if (preg_match("/brown/", $string)) {
    echo "The string contains 'brown'";
} else {
    echo "The string does not contain 'brown'";
}

Get User IP Address using PHP – Source Code + Demo

How can I use the array_unique function to remove duplicate elements from an array in PHP? Example code:

How can I send an email using PHP? Example code

How can I retrieve data from a MySQL database using PHP? Example code

How can I add days to a date in PHP? Example code:

How can I format a date in PHP? Example code:

How can I get the current date and time in PHP? Example code:

How can I use the in_array function to check if an element exists in an array in PHP? Example code:

How can I use the htmlentities function to convert special characters to HTML entities in PHP? Example code:

How can I use the implode function to join an array into a string with a separator in PHP? Example code:

How can I use an elseif statement in PHP? Example code:

How can I use the array_walk function to apply a function to each element of an array in PHP? Example code:

How can I check if a string contains a certain substring in PHP? Example code:

How can I check if a string ends with a certain substring in PHP? Example code:

How can I use the fopen and fwrite functions to write a string to a file in PHP? Example code:

How can I sort an array in descending order in PHP? Example code:

How can I use the htmlspecialchars function to convert special characters to HTML entities in PHP? Example code:

How can I use the glob function to get a list of files that match a pattern in PHP? Example code:

How to code in PHP

How can I create a multidimensional array in PHP? Example code:

How can I use the is_readable function to check if a file is readable in PHP? Example code:

How can I calculate the difference between two dates in PHP? Example code:

What is PHP code?

How can I use the array_reverse function to reverse the order of an array in PHP? Example code:

How can I write to a CSV file in PHP? Example code:

How can I use the implode function to join an array into a string in PHP? Example code:

How can I use the file_put_contents function to write a string to a file in PHP? Example code:

How can I use the rename function to rename a file or directory in PHP? Example code:

How can I use the array_intersect function to get the common elements between two or more arrays in PHP? Example code:

How can I use the array_slice function to get a portion of an array in PHP? Example code: