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

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "http://example.com");

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);

curl_close($ch);

echo $response;

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

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

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

How can I use the array_merge function to merge two or more arrays in PHP? Example code:

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

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

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

How can I use a do-while loop in PHP? Example code:

How can I use an if-else statement 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 is_writable function to check if a file is writable in PHP? Example code:

How can I loop through an array 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 convert a string to uppercase in PHP? Example code:

How can I use the fopen and fgets functions to read a file line by line in PHP? Example code:

How can I create a class 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 the str_replace function to replace multiple substrings in a string in PHP? Example code:

How to send SMS using PHP program (full code sample included)

How can I use the glob function to get a list of files that match a pattern 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 use the implode function to join an array into a string with a separator in PHP? Example code:

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