PHP Functions - All Important PHP functions

We have described SPL Autoload Functions, Image Functions, Session function, Cookie functions, Command line options, Read & Write in CSV File, Read & Write into cookies, Get the size of the image, phpinfo, JSON Encode, JSON decode and other Most Common PHP functions with the help of code Snippets.

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PHP Functions:

1. Check if string contains specific words - PHP.
2. New features of PHP 5.5 with Examples.
3. New features of PHP 5.4 with Examples.
4. date_sunrise - Returns time of sunrise for a given day and location.
5. Convert image to Binary Data and vice versa in PHP.
6. Difference between in_array and array_key_exists in php with Example.
7. get_class_vars PHP Function.
8. get_class_methods PHP Function.
9. mysql_fetch_field - Get column information from a result.
10. PHP mktime() Function - Get Unix timestamp for a date.
11. Strtolower - Returns string with all alphabetic characters converted to lowercase.
12. PHP file_get_contents Function - Reads entire file into a string.
13. PHP utf8_encode Function - Encodes an ISO-8859-1 string to UTF-8.
14. com_create_guid Generate a globally unique identifier.
15. spl_autoload What is spl_autoload function in php.
16. parse_ini_string - Parse a configuration string.
17. stream_socket_client - Open Internet or Unix domain socket connection.
18. imagecopyresampled-Copy and resize part of an image with resampling.
19. What is proc_close.
20. What is str_getcsv.
21. ob_get_level -Return the nesting level of the output buffering mechanism.
22. openssl decrypt - Decrypts data.
23. Domain Name Server.
24. openssl private encrypt.
25. openssl_pkcs12_read.
26. mb_check_encoding.
27. imagegrabwindow.
28. imagealphablending.
29. Gets options from the command line argument list.
30. spl autoload extensions in PHP.
31. Parse a binary IPTC block into single tags.
32. Embeds binary IPTC data into a JPEG image.
33. Perform a regular expression search and replace.
34. session_set_save_handler.
35. What is session_set_cookie_params.
36. mcrypt_encrypt.
37. imagegrabscreen.
38. imagecreatefrompng - Create a new image from file or URL - PHP.
39. imagecreatefromjpeg.
40. stat Gives information about a file - PHP.
41. fsockopen Open Internet or Unix domain socket connection- PHP.
42. fputcsv - Write in CSV File with PHP.
43. realpath - Get the Real path of File with PHP.
44. intval - Get Integer value from string in PHP.
45. register_shutdown_function.
46. setcookie - Store Cookie in Browser with PHP.
47. header_remove - Remove the Header.
48. proc_open.
49. count_chars - Count Number of character of string with PHP.
50. ucwords - Uppercase the first character of each word in a string.
51. getimagesize -Get the size of an image - PHP.
52. phpinfo - Outputs information about PHP's configuration.
53. iterator_apply - Call a function for every element in an iterator - PHP.
54. spl_autoload_register.
55. json_encode - Returns the JSON representation of a value.
56. mcrypt_decrypt.
57. PHP Magic Methods with Examples.

Download Videos from Amazon S3 - PHP

            $newFileName = "download_filename.mp4";
            header('Content-Type: video/mp4');
            header('Content-Disposition: attachment; filename="' . $newFileName . '"');
            $my_aws_key = 'AWS_KEY';
            $my_aws_secret_key = 'AWS_SCRET_KEY';
            $s3 = new Zend_Service_Amazon_S3($my_aws_key, $my_aws_secret_key);
            $newFileName = "S3_download_filename.mp4";
            $response = $s3->getObjectStream("$newFileName");//download stream from s3
            readfile($response->getStreamName());
            

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29. Strtolower - Returns string with all alphabetic characters converted to lowercase.
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