How can I replace a substring in a string in PHP? Example code:

Listen

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

echo str_replace("fox", "cat", $string);

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 mkdir function to create a directory in PHP? Example code:

How can I format a number with commas 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 is_readable function to check if a file is readable in PHP? Example code:

How can I use a conditional statement in PHP? Example code

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

PHP Use Cases with Example Source Code

How can I upload a file using PHP? Example code

How can I sort an associative array by its values 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 use an if-else statement 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_walk function to apply a function to each element of an array in PHP? Example code:

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

How can I use a ternary operator 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 difference between two dates in PHP? Example code:

How can I check if a string contains a certain substring 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 trim whitespace from the beginning and end of a string 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 fopen and fgets functions to read a file line by line 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 a try-catch block in PHP? Example code:

How can I use an elseif statement 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 connect to a MySQL database using PHP? Example code.

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

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