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

Listen

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

if (strpos($string, "fox") !== false) {
    echo "The string contains 'fox'";
} else {
    echo "The string does not contain 'fox'";
}

How can I create a session variable in PHP? Example code

How can I use the array_chunk function to split an array into chunks in PHP? Example code:

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

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

How can I use the curl_setopt function to set options for a cURL session in PHP? Example code:

How can I use the json_encode function to convert an array or object to a JSON string in PHP? Example code:

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

How can I use the array_values function to get an array of values from an associative array in PHP? Example code:

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

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

How can I use a ternary operator in PHP? Example code:

How can I use the mkdir function to create a directory in PHP? Example code:

How can I use the curl_exec function to execute a cURL session and get the response in PHP? Example code:

How can I use the array_pop function to remove the last element from an array in PHP? Example code:

How can I sort an associative array by its values in PHP? Example code:

How can I subtract days from a date in PHP? Example code:

How can I use the filemtime function to get the last modified time of a file in PHP? Example code:

PHP Use Cases with Example Source Code

How can I create a file in PHP? Example code:

How can I write to a CSV file 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 read a file 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 strrev function to reverse a string in PHP? Example code:

How can I generate a random string in PHP? Example code:

How can I use the curl_setopt_array function to set multiple options for a cURL session in PHP? Example code:

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

Get User IP Address using PHP – Source Code + Demo