{"id":3992,"date":"2021-07-29T07:45:19","date_gmt":"2021-07-29T07:45:19","guid":{"rendered":"https:\/\/www.bearloga.space\/?page_id=3992"},"modified":"2021-07-29T07:45:19","modified_gmt":"2021-07-29T07:45:19","slug":"ajax-operaczii-s-bazami-dannyh","status":"publish","type":"page","link":"https:\/\/www.bearloga.space\/uk\/ajax-operaczii-s-bazami-dannyh\/","title":{"rendered":"AJAX \u2014 \u041e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0441 \u0431\u0430\u0437\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445"},"content":{"rendered":"\n

\u0427\u0442\u043e\u0431\u044b \u043d\u0430\u0433\u043b\u044f\u0434\u043d\u043e \u043f\u0440\u043e\u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c, \u043a\u0430\u043a \u043b\u0435\u0433\u043a\u043e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u0437 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e AJAX, \u043c\u044b \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u043c\u0441\u044f \u043d\u0430 \u043b\u0435\u0442\u0443 \u0441\u0442\u0440\u043e\u0438\u0442\u044c \u0437\u0430\u043f\u0440\u043e\u0441\u044b MySQL \u0438 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0442\u044c \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0432 \u00abajax.html\u00bb. \u041d\u043e \u043f\u0440\u0435\u0436\u0434\u0435 \u0447\u0435\u043c \u043c\u044b \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u043c, \u0434\u0430\u0432\u0430\u0439\u0442\u0435 \u0441\u0434\u0435\u043b\u0430\u0435\u043c \u043e\u0441\u043d\u043e\u0432\u043d\u0443\u044e \u0440\u0430\u0431\u043e\u0442\u0443. \u0421\u043e\u0437\u0434\u0430\u0439\u0442\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u0443 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0439 \u043a\u043e\u043c\u0430\u043d\u0434\u044b.<\/p>\n\n\n\n

\u041f\u0420\u0418\u041c\u0415\u0427\u0410\u041d\u0418\u0415.<\/strong> \u2014 \u041c\u044b \u043f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u0435\u043c, \u0447\u0442\u043e \u0443 \u0432\u0430\u0441 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043f\u0440\u0430\u0432 \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 MySQL.<\/p>\n\n\n\n

CREATE TABLE 'ajax_example' (\n   'name' varchar(50) NOT NULL,\n   'age' int(11) NOT NULL,\n   'sex' varchar(1) NOT NULL,\n   'wpm' int(11) NOT NULL,\n   PRIMARY KEY  ('name')\n) \n<\/pre>\n\n\n\n
\u0422\u0435\u043f\u0435\u0440\u044c \u043f\u043e\u043c\u0435\u0441\u0442\u0438\u0442\u0435 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 \u0432 \u044d\u0442\u0443 \u0442\u0430\u0431\u043b\u0438\u0446\u0443, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0435 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u044b SQL:<\/p>\n\n\n\n
INSERT INTO 'ajax_example' VALUES ('Jerry', 120, 'm', 20);\nINSERT INTO 'ajax_example' VALUES ('Regis', 75, 'm', 44);\nINSERT INTO 'ajax_example' VALUES ('Frank', 45, 'm', 87);\nINSERT INTO 'ajax_example' VALUES ('Jill', 22, 'f', 72);\nINSERT INTO 'ajax_example' VALUES ('Tracy', 27, 'f', 0);\nINSERT INTO 'ajax_example' VALUES ('Julie', 35, 'f', 90);\n<\/pre>\n\n\n\n
HTML-\u0444\u0430\u0439\u043b \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u043a\u043b\u0438\u0435\u043d\u0442\u0430<\/h2>\n\n\n\n
\u0422\u0435\u043f\u0435\u0440\u044c \u0434\u0430\u0432\u0430\u0439\u0442\u0435 \u0441\u043e\u0437\u0434\u0430\u0434\u0438\u043c HTML-\u0444\u0430\u0439\u043b \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u043a\u043b\u0438\u0435\u043d\u0442\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f ajax.html, \u0438 \u043e\u043d \u0431\u0443\u0434\u0435\u0442 \u0438\u043c\u0435\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u043a\u043e\u0434:<\/p>\n\n\n\n
<html>\n   <body>\n      <script language = \"javascript\" type = \"text\/javascript\">\n         <!-- \n         \/\/Browser Support Code\n         function ajaxFunction() {\n            var ajaxRequest;  \/\/ The variable that makes Ajax possible!\n            \n            try {        \n               \/\/ Opera 8.0+, Firefox, Safari\n               ajaxRequest = new XMLHttpRequest();\n            } catch (e) {\n               \n               \/\/ Internet Explorer Browsers\n               try {\n                  ajaxRequest = new ActiveXObject(\"Msxml2.XMLHTTP\");\n               } catch (e) {\n                  \n                  try {\n                     ajaxRequest = new ActiveXObject(\"Microsoft.XMLHTTP\");\n                  } catch (e) {\n                     \/\/ Something went wrong\n                     alert(\"Your browser broke!\");\n                     return false;\n                  }\n               }\n            }\n            \n            \/\/ Create a function that will receive data\n            \/\/ sent from the server and will update\n            \/\/ div section in the same page.\n            ajaxRequest.onreadystatechange = function() {\n            \n               if(ajaxRequest.readyState == 4) {\n                  var ajaxDisplay = document.getElementById('ajaxDiv');\n                  ajaxDisplay.innerHTML = ajaxRequest.responseText;\n               }\n            }\n            \n            \/\/ Now get the value from user and pass it to\n            \/\/ server script.\n            var age = document.getElementById('age').value;\n            var wpm = document.getElementById('wpm').value;\n            var sex = document.getElementById('sex').value;\n            var queryString = \"?age = \" + age ;\n            \n            queryString +=  \"&wpm = \" + wpm + \"&sex = \" + sex;\n            ajaxRequest.open(\"GET\", \"ajax-example.php\" + queryString, true);\n            ajaxRequest.send(null); \n         }\n         \/\/-->\n      <\/script>\n\n      <form name = 'myForm'>\n         Max Age: <input type = 'text' id = 'age' \/> <br \/>\n         Max WPM: <input type = 'text' id = 'wpm' \/> <br \/>\n         Sex: \n         \n         <select id = 'sex'>\n            <option value = \"m\">m<\/option>\n            <option value = \"f\">f<\/option>\n         <\/select>\n         \n         <input type = 'button' onclick = 'ajaxFunction()' value = 'Query MySQL'\/>\n      <\/form>\n      \n      <div id = 'ajaxDiv'>Your result will display here<\/div>\n   <\/body>\n<\/html><\/pre>\n\n\n\n
\u041f\u0420\u0418\u041c\u0415\u0427\u0410\u041d\u0418\u0415.<\/strong> \u2014 \u0421\u043f\u043e\u0441\u043e\u0431 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0432 \u0437\u0430\u043f\u0440\u043e\u0441\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0443 HTTP \u0438 \u0438\u043c\u0435\u0435\u0442 \u0444\u043e\u0440\u043c\u0443 FormA.<\/p>\n\n\n\n
URL?variable1 = value1;&variable2 = value2;\n<\/pre>\n\n\n\n
\u041f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u0439 \u0432\u044b\u0448\u0435 \u043a\u043e\u0434 \u0434\u0430\u0441\u0442 \u0432\u0430\u043c \u044d\u043a\u0440\u0430\u043d, \u043a\u0430\u043a \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u043d\u0438\u0436\u0435 \u2014<\/p>\n\n\n\n
\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0432\u043e\u0437\u0440\u0430\u0441\u0442: <\/p>\n\n\n\n
\u041c\u0430\u043a\u0441 WPM: <\/p>\n\n\n\n
\u041f\u043e\u043b:  \u043c  \u0435 <\/p>\n\n\n\n
\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0432\u043e\u0437\u0440\u0430\u0441\u0442: <\/p>\n\n\n\n
\u041c\u0430\u043a\u0441 WPM: <\/p>\n\n\n\n
\u041f\u043e\u043b:  \u043c  \u0435 <\/p>\n\n\n\n
\u0412\u0430\u0448 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u0431\u0443\u0434\u0435\u0442 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0442\u044c\u0441\u044f \u0437\u0434\u0435\u0441\u044c \u0432 \u044d\u0442\u043e\u043c \u0440\u0430\u0437\u0434\u0435\u043b\u0435 \u043f\u043e\u0441\u043b\u0435 \u0442\u043e\u0433\u043e, \u043a\u0430\u043a \u0432\u044b \u0441\u0434\u0435\u043b\u0430\u043b\u0438 \u0441\u0432\u043e\u044e \u0437\u0430\u043f\u0438\u0441\u044c.<\/p>\n\n\n\n
\u041f\u0420\u0418\u041c\u0415\u0427\u0410\u041d\u0418\u0415.<\/strong> \u2014 \u042d\u0442\u043e \u0444\u0438\u043a\u0442\u0438\u0432\u043d\u044b\u0439 \u044d\u043a\u0440\u0430\u043d.<\/p>\n\n\n\n
PHP-\u0444\u0430\u0439\u043b \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430<\/h2>\n\n\n\n
\u0412\u0430\u0448 \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u0438\u0439 \u0441\u043a\u0440\u0438\u043f\u0442 \u0433\u043e\u0442\u043e\u0432. \u0422\u0435\u043f\u0435\u0440\u044c \u043c\u044b \u0434\u043e\u043b\u0436\u043d\u044b \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u043d\u0430\u0448 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0439 \u0441\u043a\u0440\u0438\u043f\u0442, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0431\u0443\u0434\u0435\u0442 \u0438\u0437\u0432\u043b\u0435\u043a\u0430\u0442\u044c \u0432\u043e\u0437\u0440\u0430\u0441\u0442, wpm \u0438 \u043f\u043e\u043b \u0438\u0437 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u0438\u0445 \u043e\u0431\u0440\u0430\u0442\u043d\u043e \u043a\u043b\u0438\u0435\u043d\u0442\u0443. \u041f\u043e\u043c\u0435\u0441\u0442\u0438\u0442\u0435 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u043a\u043e\u0434 \u0432 \u0444\u0430\u0439\u043b \u00abajax-example.php\u00bb.<\/p>\n\n\n\n
<?php\n$dbhost = \"localhost\";\n$dbuser = \"dbusername\";\n$dbpass = \"dbpassword\";\n$dbname = \"dbname\";\n\t\n\/\/Connect to MySQL Server\nmysql_connect($dbhost, $dbuser, $dbpass);\n\t\n\/\/Select Database\nmysql_select_db($dbname) or die(mysql_error());\n\t\n\/\/ Retrieve data from Query String\n$age = $_GET['age'];\n$sex = $_GET['sex'];\n$wpm = $_GET['wpm'];\n\t\n\/\/ Escape User Input to help prevent SQL Injection\n$age = mysql_real_escape_string($age);\n$sex = mysql_real_escape_string($sex);\n$wpm = mysql_real_escape_string($wpm);\n\t\n\/\/build query\n$query = \"SELECT * FROM ajax_example WHERE sex = '$sex'\";\n\nif(is_numeric($age))\n   $query .= \" AND age <= $age\";\n\nif(is_numeric($wpm))\n   $query .= \" AND wpm <= $wpm\";\n\t\n\/\/Execute query\n$qry_result = mysql_query($query) or die(mysql_error());\n\n\/\/Build Result String\n$display_string = \"<table>\";\n$display_string .= \"<tr>\";\n$display_string .= \"<th>Name<\/th>\";\n$display_string .= \"<th>Age<\/th>\";\n$display_string .= \"<th>Sex<\/th>\";\n$display_string .= \"<th>WPM<\/th>\";\n$display_string .= \"<\/tr>\";\n\n\/\/ Insert a new row in the table for each person returned\nwhile($row = mysql_fetch_array($qry_result)) {\n   $display_string .= \"<tr>\";\n   $display_string .= \"<td>$row[name]<\/td>\";\n   $display_string .= \"<td>$row[age]<\/td>\";\n   $display_string .= \"<td>$row[sex]<\/td>\";\n   $display_string .= \"<td>$row[wpm]<\/td>\";\n   $display_string .= \"<\/tr>\";\n}\n\necho \"Query: \" . $query . \"<br \/>\";\n$display_string .= \"<\/table>\";\n\necho $display_string;\n?>\n<\/pre>\n\n\n\n
\u0422\u0435\u043f\u0435\u0440\u044c \u043f\u043e\u043f\u0440\u043e\u0431\u0443\u0439\u0442\u0435 \u0432\u0432\u0435\u0441\u0442\u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, 120) \u0432 Max Age<\/em> \u0438\u043b\u0438 \u043b\u044e\u0431\u043e\u043c \u0434\u0440\u0443\u0433\u043e\u043c \u043f\u043e\u043b\u0435, \u0430 \u0437\u0430\u0442\u0435\u043c \u043d\u0430\u0436\u043c\u0438\u0442\u0435 \u043a\u043d\u043e\u043f\u043a\u0443 Query MySQL.<\/p>\n\n\n\n
\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0432\u043e\u0437\u0440\u0430\u0441\u0442: <\/p>\n\n\n\n
\u041c\u0430\u043a\u0441 WPM: <\/p>\n\n\n\n
\u041f\u043e\u043b:  \u043c  \u0435 <\/p>\n\n\n\n
\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0432\u043e\u0437\u0440\u0430\u0441\u0442: <\/p>\n\n\n\n
\u041c\u0430\u043a\u0441 WPM: <\/p>\n\n\n\n
\u041f\u043e\u043b:  \u043c  \u0435 <\/p>\n\n\n\n
\u0412\u0430\u0448 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u0431\u0443\u0434\u0435\u0442 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0442\u044c\u0441\u044f \u0437\u0434\u0435\u0441\u044c \u0432 \u044d\u0442\u043e\u043c \u0440\u0430\u0437\u0434\u0435\u043b\u0435 \u043f\u043e\u0441\u043b\u0435 \u0442\u043e\u0433\u043e, \u043a\u0430\u043a \u0432\u044b \u0441\u0434\u0435\u043b\u0430\u043b\u0438 \u0441\u0432\u043e\u044e \u0437\u0430\u043f\u0438\u0441\u044c.<\/p>\n\n\n\n
\u0415\u0441\u043b\u0438 \u0432\u044b \u0443\u0441\u043f\u0435\u0448\u043d\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b\u0438 \u044d\u0442\u043e\u0442 \u0443\u0440\u043e\u043a, \u0442\u043e \u0432\u044b \u0437\u043d\u0430\u0435\u0442\u0435, \u043a\u0430\u043a \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c MySQL, PHP, HTML \u0438 Javascript \u0432 \u0442\u0430\u043d\u0434\u0435\u043c\u0435 \u0434\u043b\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0438\u044f AJAX-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439.<\/p>\n","protected":false},"excerpt":{"rendered":"
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