How can I use the curl_init function to initialize a cURL session in PHP? Example code:

Listen

$ch = curl_init();

// Set options and perform request

curl_close($ch);

How can I trim whitespace from the beginning and end of a string in PHP? Example code:

How can I use the fgetcsv function to read a CSV file into an array in PHP? Example code:

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

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

How can I use the array_search function to search for a value in an array and return its key in PHP? Example code:

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

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

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

How can I use a switch statement in PHP? Example code:

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

How can I use a for loop in PHP? Example code:

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

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

How can I use the explode function to split a string into an array with a limit in PHP? Example code:

How can I get the current date and time 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 read data from a JSON file using PHP? Example code:

How can I shuffle an array in PHP? Example code:

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

How can I use the file_get_contents function to read the contents of a file into a string 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 a regular expression to replace a pattern in a string in PHP? Example code:

How can I use the array_unshift function to add an element to the beginning of an array in PHP? Example code:

How can I use the array_push function to add an element to an array in PHP? Example code:

How can I send an email using PHP? Example code

How can I use the copy function to copy a file 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 use a while loop in PHP? Example code:

How can I use the array_reduce function to apply a function to each element of an array and reduce it to a single value in PHP? Example code:

How can I convert a string to lowercase in PHP? Example code: