[AJAX] Script de mon moteur de recherche

Bonjour,
Il faut dire que tu ne parles pas vraiment d'AJAX, mais de syntaxe PHP pour retrouver une lettre ou un morceau de mot dans un ARRAY.

Ce que tu cherches a faire est strictement la même démarche que celle qui te ramène un auto-complément sur un imput.
De là, tu pourrais adapter a ton besoins, très facilement.

par exemple
1) un SQL crées cette table

Code:

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CREATE TABLE IF NOT EXISTS `ajax_pays` (
  `id` int(6) NOT NULL AUTO_INCREMENT,
  `nom` varchar(250) NOT NULL DEFAULT '',
  PRIMARY KEY  (`id`)
);
 
INSERT INTO `ajax_pays` (`id`, `nom`) VALUES
(1, 'Afghanistan'),
(2, 'Aringland Islands'),
(3, 'Albania'),
(4, 'Algeria'),
(5, 'American Samoa'),
(6, 'Andorra'),
(7, 'Angola'),
(8, 'Anguilla'),
(9, 'Antarctica'),
(10, 'Antigua and Barbuda'),
(11, 'Argentina'),
(12, 'Armenia'),
(13, 'Aruba'),
(14, 'Australia'),
(15, 'Austria'),
(16, 'Azerbaijan'),
(17, 'Bahamas'),
(18, 'Bahrain'),
(19, 'Bangladesh'),
(20, 'Barbados'),
(21, 'Belarus'),
(22, 'Belgium'),
(23, 'Belize'),
(24, 'Benin'),
(25, 'Bermuda'),
(26, 'Bhutan'),
(27, 'Bolivia'),
(28, 'Bosnia and Herzegovina'),
(29, 'Botswana'),
(30, 'Bouvet Island'),
(31, 'Brazil'),
(32, 'British Indian Ocean territory'),
(33, 'Brunei Darussalam'),
(34, 'Bulgaria'),
(35, 'Burkina Faso'),
(36, 'Burundi'),
(37, 'Cambodia'),
(38, 'Cameroon'),
(39, 'Canada'),
(40, 'Cape Verde'),
(41, 'Cayman Islands'),
(42, 'Central African Republic'),
(43, 'Chad'),
(44, 'Chile'),
(45, 'China'),
(46, 'Christmas Island'),
(47, 'Cocos (Keeling) Islands'),
(48, 'Colombia'),
(49, 'Comoros'),
(50, 'Congo'),
(51, 'Congo'),
(52, ' Democratic Republic'),
(53, 'Cook Islands'),
(54, 'Costa Rica'),
(55, 'Ivory Coast (Ivory Coast)'),
(56, 'Croatia (Hrvatska)'),
(57, 'Cuba'),
(58, 'Cyprus'),
(59, 'Czech Republic'),
(60, 'Denmark'),
(61, 'Djibouti'),
(62, 'Dominica'),
(63, 'Dominican Republic'),
(64, 'East Timor'),
(65, 'Ecuador'),
(66, 'Egypt'),
(67, 'El Salvador'),
(68, 'Equatorial Guinea'),
(69, 'Eritrea'),
(70, 'Estonia'),
(71, 'Ethiopia'),
(72, 'Falkland Islands'),
(73, 'Faroe Islands'),
(74, 'Fiji'),
(75, 'Finland'),
(76, 'France'),
(77, 'French Guiana'),
(78, 'French Polynesia'),
(79, 'French Southern Territories'),
(80, 'Gabon'),
(81, 'Gambia'),
(82, 'Georgia'),
(83, 'Germany'),
(84, 'Ghana'),
(85, 'Gibraltar'),
(86, 'Greece'),
(87, 'Greenland'),
(88, 'Grenada'),
(89, 'Guadeloupe'),
(90, 'Guam'),
(91, 'Guatemala'),
(92, 'Guinea'),
(93, 'Guinea-Bissau'),
(94, 'Guyana'),
(95, 'Haiti'),
(96, 'Heard and McDonald Islands'),
(97, 'Honduras'),
(98, 'Hong Kong'),
(99, 'Hungary'),
(100, 'Iceland'),
(101, 'India'),
(102, 'Indonesia'),
(103, 'Iran'),
(104, 'Iraq'),
(105, 'Ireland'),
(106, 'Israel'),
(107, 'Italy'),
(108, 'Jamaica'),
(109, 'Japan'),
(110, 'Jordan'),
(111, 'Kazakhstan'),
(112, 'Kenya'),
(113, 'Kiribati'),
(114, 'Korea (north)'),
(115, 'Korea (south)'),
(116, 'Kuwait'),
(117, 'Kyrgyzstan'),
(118, 'Lao People''s Democratic Republic'),
(119, 'Latvia'),
(120, 'Lebanon'),
(121, 'Lesotho'),
(122, 'Liberia'),
(123, 'Libyan Arab Jamahiriya'),
(124, 'Liechtenstein'),
(125, 'Lithuania'),
(126, 'Luxembourg'),
(127, 'Macao'),
(128, 'Macedonia'),
(129, 'Madagascar'),
(130, 'Malawi'),
(131, 'Malaysia'),
(132, 'Maldives'),
(133, 'Mali'),
(134, 'Malta'),
(135, 'Marshall Islands'),
(136, 'Martinique'),
(137, 'Mauritania'),
(138, 'Mauritius'),
(139, 'Mayotte'),
(140, 'Mexico'),
(141, 'Micronesia'),
(142, 'Moldova'),
(143, 'Monaco'),
(144, 'Mongolia'),
(145, 'Montserrat'),
(146, 'Morocco'),
(147, 'Mozambique'),
(148, 'Myanmar'),
(149, 'Namibia'),
(150, 'Nauru'),
(151, 'Nepal'),
(152, 'Netherlands'),
(153, 'Netherlands Antilles'),
(154, 'New Caledonia'),
(155, 'New Zealand'),
(156, 'Nicaragua'),
(157, 'Niger'),
(158, 'Nigeria'),
(159, 'Niue'),
(160, 'Norfolk Island'),
(161, 'Northern Mariana Islands'),
(162, 'Norway'),
(163, 'Oman'),
(164, 'Pakistan'),
(165, 'Palau'),
(166, 'Palestinian Territories'),
(167, 'Panama'),
(168, 'Papua New Guinea'),
(169, 'Paraguay'),
(170, 'Peru'),
(171, 'Philippines'),
(172, 'Pitcairn'),
(173, 'Poland'),
(174, 'Portugal'),
(175, 'Puerto Rico'),
(176, 'Qatar'),
(177, 'Runion'),
(178, 'Romania'),
(179, 'Russian Federation'),
(180, 'Rwanda'),
(181, 'Saint Helena'),
(182, 'Saint Kitts and Nevis'),
(183, 'Saint Lucia'),
(184, 'Saint Pierre and Miquelon'),
(185, 'Saint Vincent and the Grenadines'),
(186, 'Samoa'),
(187, 'San Marino'),
(188, 'Sao Tome and Principe'),
(189, 'Saudi Arabia'),
(190, 'Senegal'),
(191, 'Serbia and Montenegro'),
(192, 'Seychelles'),
(193, 'Sierra Leone'),
(194, 'Singapore'),
(195, 'Slovakia'),
(196, 'Slovenia'),
(197, 'Solomon Islands'),
(198, 'Somalia'),
(199, 'South Africa'),
(200, 'South Georgia and the South Sandwich Islands'),
(201, 'Spain'),
(202, 'Sri Lanka'),
(203, 'Sudan'),
(204, 'Suriname'),
(205, 'Svalbard and Jan Mayen Islands'),
(206, 'Swaziland'),
(207, 'Sweden'),
(208, 'Switzerland'),
(209, 'Syria'),
(210, 'Taiwan'),
(211, 'Tajikistan'),
(212, 'Tanzania'),
(213, 'Thailand'),
(214, 'Togo'),
(215, 'Tokelau'),
(216, 'Tonga'),
(217, 'Trinidad and Tobago'),
(218, 'Tunisia'),
(219, 'Turkey'),
(220, 'Turkmenistan'),
(221, 'Turks and Caicos Islands'),
(222, 'Tuvalu'),
(223, 'Uganda'),
(224, 'Ukraine'),
(225, 'United Arab Emirates'),
(226, 'United Kingdom'),
(227, 'United States of America'),
(228, 'Uruguay'),
(229, 'Uzbekistan'),
(230, 'Vanuatu'),
(231, 'Vatican City'),
(232, 'Venezuela'),
(233, 'Vietnam'),
(234, 'Virgin Islands (British)'),
(235, 'Virgin Islands (US)'),
(236, 'Wallis and Futuna Islands'),
(237, 'Western Sahara'),
(238, 'Yemen'),
(239, 'Zaire'),
(240, 'Zambia'),
(241, 'Zimbabwe');

2) lance ce PHP qui genere ton AJAX

Code:

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<?php
header('Content-type: text/html; charset=ISO-8859-1');
?>
<script type="text/javascript">
<!--
function Capter(lui)
{
document.LeForm.LePays.value=lui;
document.getElementById('LeRetour2').style.visibility="hidden";
}
 
function maFonctionAjax(LePays)
{
  if(LePays.length != 0) {
  var MonAjax;
  if (window.XMLHttpRequest){ MonAjax = new XMLHttpRequest();}
  else if (window.ActiveXObject) {MonAjax = new ActiveXObject('Microsoft.XMLHTTP');}
  else {
    alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
    MonAjax = false;   }
  MonAjax.open('POST',"ajax_pays_pdo.php",true);
  MonAjax.onreadystatechange = function()
  {
      if (MonAjax.readyState == 4 && MonAjax.status==200)
      {
              if (MonAjax.responseText !='')
                {
                    document.getElementById('LeRetour2').innerHTML="<ul>"+MonAjax.responseText+"</ul>";
                } else
                  {
                    document.getElementById('LeRetour2').innerHTML='';
                  }
      }
      else{
           document.getElementById('LeRetour2').style.visibility="visible";
 
           }
  }
  MonAjax.setRequestHeader('Content-type','application/x-www-form-urlencoded');
  MonAjax.send('LePays='+LePays);
 }
}
//-->
</script>
 
<div class='centre01'>
<br /><br /><br />
<form method='post'  action='#' id='LeForm' name='LeForm'>
Le Pays:  <input class='le213'  name='LePays' id='LePays' type='text' autocomplete='off'  onkeyup='maFonctionAjax(this.value);return false;' value=''  ><br />
<input type='submit' value='envoyer'  /><br />
</form>
<div class='LeRetour2' id='LeRetour2'>
</div>
<br /><br />
</div>
</body></html>

3) il appel ce php

Code:

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<?php
header('Content-type: text/html; charset=ISO-8859-1');
try {
  $bdd = new PDO('mysql:host=localhost;dbname=jplyne', 'root', '');
  $bdd->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 }
catch(Exception $e) {
  die('Erreur : '.$e->getMessage());
 }
 
$LePays = (isset($_POST['LePays'])) ? $_POST['LePays'] : '';
if(strlen($LePays) >0)
  {
  $LeBuf="";
  $req = $bdd->query("SELECT nom FROM ajax_pays WHERE nom  LIKE '$LePays%' LIMIT 10");
   while ($row = $req->fetch())
    {
    $rowx=$row['nom'];
    $LeBuf .="<li  onClick=\"Capter('".$rowx."');\">".$rowx."</li>";
    }
  echo $LeBuf;
  }
$bdd=NULL;
?>

A++
Christele