PHP Filename php php echo htmlbodyh 1 echo

Основы PHP Filename. php: <? php echo “<html><body><h 1>”; echo “Hello World”; echo “</h 1></body></html>”; ? > Filename. html: <html> <body> <? php echo “Hello World”; ? > </body> </html>

Переменные и константы Переменные: $var_name = $value; … $var 1 = 1; $var 2 = 1. 0; $var 3 = “str”; $var 4 = true; $var 5 = $object; … Константы: define($name, $value, $case_sen); … define(“pi”, 3. 14, true); define(“str”, “string”, false); …

Массивы Скалярные: $array_name[n] = $value; … $array 1[0] = “string 1”; $array 1[1] = “string 2”; $array 2[0] = 1. 67; $array 3 = array(‘a’, ‘b’, ‘c’); … Ассоциативные: $array_name[$key] = $value; … $array 1[“key 1”] = “value 1”; $array 1[“key 2”] = “value 2”; $array 2[“key 1”] = 2. 456; $array 3 = array(‘a’=>1, ‘b’=>2); …

Функции function Name (arg 1 [=val 1], …, arg. N [=val. N]) { //Body [return …; ] } … function func($a, $b) { return $a * $b; } …

Примеры 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. <? php echo "<html><head><title>Hompage</title></head>"; echo "<body bgcolor = "334499"><font size = "4" color = "bbbb 00">"; echo "<h 1>Новости</h 1> "; $server_url = "http: //www. newsserver. ru/lastnews. txt"; if(file_exists($server_url)) { $IN = file($server_url); } else { die(“Ошибка при открытии файла"); } foreach($IN as $v) { echo $v; } ? > echo "</body>"; echo "</html>";

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. <? php @ $db = mysql_pconnect('localhost', 'user', 'qwe 123'); if(!$db) { } die("BD connection error! "); mysql_select_db('students'); $query = "select name, group from students where oc > 4"; echo "<table><tr><td> name </td><td> group </td></tr>"; $result = mysql_query($query); for($i = 0; $i < mysql_num_rows($result); $i++) { echo "<tr>"; $f = mysql_fetch_array($result); } ? > echo "<td>$f[name]</td><td>$f[group]</td>"; echo "</tr>"; echo "</table></body></html>";