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| 1 | +<?php |
| 2 | +/* |
| 3 | + * IMPORTANT: You should only upload the code file as part of the exercise. |
| 4 | + * |
| 5 | + * EXERCISE: |
| 6 | + * Develop a program capable of creating a file named after |
| 7 | + * your GitHub username and has the .txt extension. |
| 8 | + * Add several lines to that file: |
| 9 | + * - Your name. |
| 10 | + * - Age. |
| 11 | + * - Favorite programming language. |
| 12 | + * Print the content. |
| 13 | + * Delete the file. |
| 14 | + */ |
| 15 | + |
| 16 | + |
| 17 | +function file_creator($content, $name) |
| 18 | +{ |
| 19 | + $checkedName = ""; |
| 20 | + |
| 21 | + if (substr($name, -4) !== '.txt') { |
| 22 | + $checkedName = $name . ".txt"; |
| 23 | + } else { |
| 24 | + $checkedName = $name; |
| 25 | + } |
| 26 | + |
| 27 | + file_put_contents($checkedName, $content, FILE_APPEND | LOCK_EX); |
| 28 | + echo "File " . $checkedName . " created.\n"; |
| 29 | +} |
| 30 | + |
| 31 | +function file_reader($name) |
| 32 | +{ |
| 33 | + $checkedName = ""; |
| 34 | + if (substr($name, -4) !== '.txt') { |
| 35 | + $checkedName = $name . ".txt"; |
| 36 | + } else { |
| 37 | + $checkedName = $name; |
| 38 | + } |
| 39 | + |
| 40 | + $contents = file_get_contents($checkedName); |
| 41 | + echo $contents . "\n"; |
| 42 | +} |
| 43 | + |
| 44 | +function file_deleter($name) |
| 45 | +{ |
| 46 | + $checkedName = ""; |
| 47 | + if (substr($name, -4) !== '.txt') { |
| 48 | + $checkedName = $name . ".txt"; |
| 49 | + } else { |
| 50 | + $checkedName = $name; |
| 51 | + } |
| 52 | + |
| 53 | + if (file_exists($checkedName)) { |
| 54 | + if (unlink($checkedName)) { |
| 55 | + echo "File " . $checkedName . " deleted.\n"; |
| 56 | + } else { |
| 57 | + echo "File " . $checkedName . " couldn't be deleted.\n"; |
| 58 | + } |
| 59 | + } else { |
| 60 | + echo "File " . $checkedName . " doens't exist.\n"; |
| 61 | + } |
| 62 | +} |
| 63 | + |
| 64 | +$content = "Name: Gabriel Moris \nAge: 34\nFavourite programming language: English."; |
| 65 | +$fileName = 'gabrielmoris.txt'; |
| 66 | +file_creator($content, $fileName); |
| 67 | +file_reader($fileName); |
| 68 | +file_deleter($fileName); |
| 69 | + |
| 70 | + |
| 71 | +/* EXTRA DIFFICULTY (optional): |
| 72 | + * Develop a sales management program that stores its data in a |
| 73 | + * .txt file. |
| 74 | + * - Each product is saved on a line of the file in the following way: |
| 75 | + * [product_name], [quantity_sold], [price]. |
| 76 | + * - Following that format, and through terminal, it should allow adding, consulting, |
| 77 | + * updating, deleting products and exiting. |
| 78 | + * - It should also have options to calculate the total sale and by product. |
| 79 | + * - The exit option deletes the .txt. |
| 80 | + */ |
| 81 | + |
| 82 | +function sales_management_system() |
| 83 | +{ |
| 84 | + echo " |
| 85 | + ===== PRINTER ===== |
| 86 | + 1.- New Document |
| 87 | + 2.- Read Document |
| 88 | + 3.- Delete Document |
| 89 | + 4.- Exit |
| 90 | + ================== |
| 91 | + \n"; |
| 92 | + |
| 93 | + do { |
| 94 | + $selection = readline("Select an option\n"); |
| 95 | + switch ($selection) { |
| 96 | + case 1: |
| 97 | + new_document(); |
| 98 | + break; |
| 99 | + case 2: |
| 100 | + read_document(); |
| 101 | + break; |
| 102 | + case 3: |
| 103 | + delete_document(); |
| 104 | + break; |
| 105 | + case 4: |
| 106 | + echo "\033c"; |
| 107 | + echo "Good bye 👋 🌐\n"; |
| 108 | + exit; |
| 109 | + default: |
| 110 | + echo "This option doesn't exist.\n"; |
| 111 | + } |
| 112 | + } while (true); |
| 113 | +} |
| 114 | + |
| 115 | +function new_document() |
| 116 | +{ |
| 117 | + $name = readline("Write the name of the document without extenstion (.txt only):\n"); |
| 118 | + $content = readline("Write the content of the document without extenstion (.txt only):\n"); |
| 119 | + file_creator($content, $name); |
| 120 | +} |
| 121 | + |
| 122 | +function read_document() |
| 123 | +{ |
| 124 | + $name = readline("Write the name of the document without extenstion (.txt only):\n"); |
| 125 | + file_reader($name); |
| 126 | +} |
| 127 | + |
| 128 | +function delete_document() |
| 129 | +{ |
| 130 | + $name = readline("Write the name of the document without extenstion (.txt only):\n"); |
| 131 | + file_deleter($name); |
| 132 | +} |
| 133 | + |
| 134 | +sales_management_system(); |
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