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

$ch = curl_init();

// Set options and perform request

curl_close($ch);

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 delete a file in 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 convert a string to lowercase 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 to send SMS using PHP program (full code sample included)

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

How can I format a number with commas in PHP? Example code:

How can I send an email using PHP? Example code

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

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

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

How can I read a file 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 create a multidimensional array 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_shift function to remove the first element from an array in PHP? Example code:

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

How can I calculate the sum of an array in PHP? Example code:

How to code in PHP

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

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

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

How can I check if a variable is set in PHP? Example code:

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

How can I use the filesize function to get the size of a file 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: