Prompt:

$1.$ Write a PHP script to replace all occurrences of "cat" with "dog" in the string "I love cats, but I also love caterpillars."

$2.$ Write a PHP script to escape a single quote in the string "It's a beautiful day!".

$3.$ Write a PHP script to get the length of the string "This string has $32$ characters.".

$4.$ Write a PHP script to get a substring of the string "The quick brown fox jumps over the lazy dog." that starts with the word "lazy".

$5.$ Write a PHP script to get the position of the word "lazy" in the string "The quick brown fox jumps over the lazy dog.".

$6.$ Create a PHP script to print the current date in the format of $"$YYYY$-$MM$-$DD$".$

$7.$ Create a PHP script to print the current date and time in the format of $"$YYYY$-$MM$-$DD HH:MM:SS$".$

$8.$ Create a PHP script to print the current month and year in the format of "Month Year" $($e$.$g$.$ February $2023).$

$9.$ Create a PHP script to add a certain number of days to a given date. The date and number of days can be input by the user in the format of $"$YYYY$-$MM$-$DD$"$ and an integer respectively. The output should be in the same format as the input.

$10.$ Create a PHP script to print the difference between two dates in the format of $"$X years, Y months, Z days". The dates can be input by the user in the format of $"$YYYY$-$MM$-$DD$".$