Simple fix, I am sure. Please help.

[Matt_C]

Please ignore the fact i have a form etc in my class and it submits to the class, what i am stuck on is finding the value from my associative array with the key that passed in the $_POST request. I have looked in the php manual and looked at other fixes people have posted online but something is not right. Easy fix for a seasoned developer i am sure, please help if you have a min.

<?php 
	
	class World {
		
		public $world_countries = array(
			  "GB" => "United Kingdom",
			  "US" => "United States",
			  "AF" => "Afghanistan",
			  "AL" => "Albania",
			  "DZ" => "Algeria",
			  "AS" => "American Samoa",
			  "AD" => "Andorra",
			  "AO" => "Angola",
			  "AI" => "Anguilla",
			  "AQ" => "Antarctica",
			  "AG" => "Antigua And Barbuda",
			  "AR" => "Argentina",
			  "AM" => "Armenia",
			  "AW" => "Aruba",
			  "AU" => "Australia",
			  "AT" => "Austria",
			  "AZ" => "Azerbaijan",
			  "BS" => "Bahamas",
			  "BH" => "Bahrain",
			  "BD" => "Bangladesh",
			  "BB" => "Barbados",
			  "BY" => "Belarus",
			  "BE" => "Belgium",
			  "BZ" => "Belize",
			  "BJ" => "Benin",
			  "BM" => "Bermuda",
			  "BT" => "Bhutan",
			  "BO" => "Bolivia",
			  "BA" => "Bosnia And Herzegowina",
			  "BW" => "Botswana",
			  "BV" => "Bouvet Island",
			  "BR" => "Brazil",
			  "IO" => "British Indian Ocean Territory",
			  "BN" => "Brunei Darussalam",
			  "BG" => "Bulgaria",
			  "BF" => "Burkina Faso",
			  "BI" => "Burundi",
			  "KH" => "Cambodia",
			  "CM" => "Cameroon",
			  "CA" => "Canada",
			  "CV" => "Cape Verde",
			  "KY" => "Cayman Islands",
			  "CF" => "Central African Republic",
			  "TD" => "Chad",
			  "CL" => "Chile",
			  "CN" => "China",
			  "CX" => "Christmas Island",
			  "CC" => "Cocos (Keeling) Islands",
			  "CO" => "Colombia",
			  "KM" => "Comoros",
			  "CG" => "Congo",
			  "CD" => "Congo, The Democratic Republic Of The",
			  "CK" => "Cook Islands",
			  "CR" => "Costa Rica",
			  "CI" => "Cote D'Ivoire",
			  "HR" => "Croatia (Local Name: Hrvatska)",
			  "CU" => "Cuba",
			  "CY" => "Cyprus",
			  "CZ" => "Czech Republic",
			  "DK" => "Denmark",
			  "DJ" => "Djibouti",
			  "DM" => "Dominica",
			  "DO" => "Dominican Republic",
			  "TP" => "East Timor",
			  "EC" => "Ecuador",
			  "EG" => "Egypt",
			  "SV" => "El Salvador",
			  "GQ" => "Equatorial Guinea",
			  "ER" => "Eritrea",
			  "EE" => "Estonia",
			  "ET" => "Ethiopia",
			  "FK" => "Falkland Islands (Malvinas)",
			  "FO" => "Faroe Islands",
			  "FJ" => "Fiji",
			  "FI" => "Finland",
			  "FR" => "France",
			  "FX" => "France, Metropolitan",
			  "GF" => "French Guiana",
			  "PF" => "French Polynesia",
			  "TF" => "French Southern Territories",
			  "GA" => "Gabon",
			  "GM" => "Gambia",
			  "GE" => "Georgia",
			  "DE" => "Germany",
			  "GH" => "Ghana",
			  "GI" => "Gibraltar",
			  "GR" => "Greece",
			  "GL" => "Greenland",
			  "GD" => "Grenada",
			  "GP" => "Guadeloupe",
			  "GU" => "Guam",
			  "GT" => "Guatemala",
			  "GN" => "Guinea",
			  "GW" => "Guinea-Bissau",
			  "GY" => "Guyana",
			  "HT" => "Haiti",
			  "HM" => "Heard And Mc Donald Islands",
			  "VA" => "Holy See (Vatican City State)",
			  "HN" => "Honduras",
			  "HK" => "Hong Kong",
			  "HU" => "Hungary",
			  "IS" => "Iceland",
			  "IN" => "India",
			  "ID" => "Indonesia",
			  "IR" => "Iran (Islamic Republic Of)",
			  "IQ" => "Iraq",
			  "IE" => "Ireland",
			  "IL" => "Israel",
			  "IT" => "Italy",
			  "JM" => "Jamaica",
			  "JP" => "Japan",
			  "JO" => "Jordan",
			  "KZ" => "Kazakhstan",
			  "KE" => "Kenya",
			  "KI" => "Kiribati",
			  "KP" => "Korea, Democratic People's Republic Of",
			  "KR" => "Korea, Republic Of",
			  "KW" => "Kuwait",
			  "KG" => "Kyrgyzstan",
			  "LA" => "Lao People's Democratic Republic",
			  "LV" => "Latvia",
			  "LB" => "Lebanon",
			  "LS" => "Lesotho",
			  "LR" => "Liberia",
			  "LY" => "Libyan Arab Jamahiriya",
			  "LI" => "Liechtenstein",
			  "LT" => "Lithuania",
			  "LU" => "Luxembourg",
			  "MO" => "Macau",
			  "MK" => "Macedonia, Former Yugoslav Republic Of",
			  "MG" => "Madagascar",
			  "MW" => "Malawi",
			  "MY" => "Malaysia",
			  "MV" => "Maldives",
			  "ML" => "Mali",
			  "MT" => "Malta",
			  "MH" => "Marshall Islands",
			  "MQ" => "Martinique",
			  "MR" => "Mauritania",
			  "MU" => "Mauritius",
			  "YT" => "Mayotte",
			  "MX" => "Mexico",
			  "FM" => "Micronesia, Federated States Of",
			  "MD" => "Moldova, Republic Of",
			  "MC" => "Monaco",
			  "MN" => "Mongolia",
			  "MS" => "Montserrat",
			  "MA" => "Morocco",
			  "MZ" => "Mozambique",
			  "MM" => "Myanmar",
			  "NA" => "Namibia",
			  "NR" => "Nauru",
			  "NP" => "Nepal",
			  "NL" => "Netherlands",
			  "AN" => "Netherlands Antilles",
			  "NC" => "New Caledonia",
			  "NZ" => "New Zealand",
			  "NI" => "Nicaragua",
			  "NE" => "Niger",
			  "NG" => "Nigeria",
			  "NU" => "Niue",
			  "NF" => "Norfolk Island",
			  "MP" => "Northern Mariana Islands",
			  "NO" => "Norway",
			  "OM" => "Oman",
			  "PK" => "Pakistan",
			  "PW" => "Palau",
			  "PA" => "Panama",
			  "PG" => "Papua New Guinea",
			  "PY" => "Paraguay",
			  "PE" => "Peru",
			  "PH" => "Philippines",
			  "PN" => "Pitcairn",
			  "PL" => "Poland",
			  "PT" => "Portugal",
			  "PR" => "Puerto Rico",
			  "QA" => "Qatar",
			  "RE" => "Reunion",
			  "RO" => "Romania",
			  "RU" => "Russian Federation",
			  "RW" => "Rwanda",
			  "KN" => "Saint Kitts And Nevis",
			  "LC" => "Saint Lucia",
			  "VC" => "Saint Vincent And The Grenadines",
			  "WS" => "Samoa",
			  "SM" => "San Marino",
			  "ST" => "Sao Tome And Principe",
			  "SA" => "Saudi Arabia",
			  "SN" => "Senegal",
			  "SC" => "Seychelles",
			  "SL" => "Sierra Leone",
			  "SG" => "Singapore",
			  "SK" => "Slovakia (Slovak Republic)",
			  "SI" => "Slovenia",
			  "SB" => "Solomon Islands",
			  "SO" => "Somalia",
			  "ZA" => "South Africa",
			  "GS" => "South Georgia, South Sandwich Islands",
			  "ES" => "Spain",
			  "LK" => "Sri Lanka",
			  "SH" => "St. Helena",
			  "PM" => "St. Pierre And Miquelon",
			  "SD" => "Sudan",
			  "SR" => "Suriname",
			  "SJ" => "Svalbard And Jan Mayen Islands",
			  "SZ" => "Swaziland",
			  "SE" => "Sweden",
			  "CH" => "Switzerland",
			  "SY" => "Syrian Arab Republic",
			  "TW" => "Taiwan",
			  "TJ" => "Tajikistan",
			  "TZ" => "Tanzania, United Republic Of",
			  "TH" => "Thailand",
			  "TG" => "Togo",
			  "TK" => "Tokelau",
			  "TO" => "Tonga",
			  "TT" => "Trinidad And Tobago",
			  "TN" => "Tunisia",
			  "TR" => "Turkey",
			  "TM" => "Turkmenistan",
			  "TC" => "Turks And Caicos Islands",
			  "TV" => "Tuvalu",
			  "UG" => "Uganda",
			  "UA" => "Ukraine",
			  "AE" => "United Arab Emirates",
			  "UM" => "United States Minor Outlying Islands",
			  "UY" => "Uruguay",
			  "UZ" => "Uzbekistan",
			  "VU" => "Vanuatu",
			  "VE" => "Venezuela",
			  "VN" => "Viet Nam",
			  "VG" => "Virgin Islands (British)",
			  "VI" => "Virgin Islands (U.S.)",
			  "WF" => "Wallis And Futuna Islands",
			  "EH" => "Western Sahara",
			  "YE" => "Yemen",
			  "YU" => "Yugoslavia",
			  "ZM" => "Zambia",
			  "ZW" => "Zimbabwe"
		
		);
		
		public function display_countries() {
		asort($this->world_countriess);
			foreach ($this->world_countries as $key => $value)
			  {
			  echo $key . ' > <a target="_blank" href="https://www.google.se/?gws_rd=cr#fp=bac353e51a633d27&q=' . $value . '">' . $value . '</a><br>';
			  }

		}
		
		public function eeti_world_options($args) {
			asort($this->world_countries);
			$outout = '<select name="country">';
			foreach ($this->world_countries as $key => $value)
			  {
			  	if ($this->$value == $args) {
			  		$outout .= '<option value="' . $key . '" selected>' . $value . '</option>';
			  	} else {
					$outout .= '<option value="' . $key . '">' . $value . '</option>';
				}
			  }
			 $outout .= '</select>';
			 return $outout;
		}

		
	}
		
?>

<?php 

$world = new World();

if (isset($_POST['submit'])) {
	
}

?>

<form method="post" action="class-world.php">
	<?php echo $world->eeti_world_options('Uganda'); ?>
<input type="submit" name="submit">
</form>

[Psycho]

Assuming all of your HTML markup is valid:

 

$selectedCountryName = $world_countries[$_POST['country']];

[Matt_C]

Hi Psycho,

 

Thank you for getting back to me.

 

Yes, it is all valid. I have no problem assigning it to a variable, i just can't figure out how to search the $world_countries array using $selectedCountryName and return the value for use/output. Because $_POST value will be the key (abbreviation)...and i want to out put the value (Country name) found in the $world_countries array.

[gristoi]

<?php 


	class World {

		private $chosenCountry;

		public $world_countries = array(

			  "GB" => "United Kingdom",

			  "US" => "United States",

			  "AF" => "Afghanistan",

			  "AL" => "Albania",

			  "DZ" => "Algeria",

			  "AS" => "American Samoa",

			  "AD" => "Andorra",

			  "AO" => "Angola",

			  "AI" => "Anguilla",

			  "AQ" => "Antarctica",

			  "AG" => "Antigua And Barbuda",

			  "AR" => "Argentina",

			  "AM" => "Armenia",

			  "AW" => "Aruba",

			  "AU" => "Australia",

			  "AT" => "Austria",

			  "AZ" => "Azerbaijan",

			  "BS" => "Bahamas",

			  "BH" => "Bahrain",

			  "BD" => "Bangladesh",

			  "BB" => "Barbados",

			  "BY" => "Belarus",

			  "BE" => "Belgium",

			  "BZ" => "Belize",

			  "BJ" => "Benin",

			  "BM" => "Bermuda",

			  "BT" => "Bhutan",

			  "BO" => "Bolivia",

			  "BA" => "Bosnia And Herzegowina",

			  "BW" => "Botswana",

			  "BV" => "Bouvet Island",

			  "BR" => "Brazil",

			  "IO" => "British Indian Ocean Territory",

			  "BN" => "Brunei Darussalam",

			  "BG" => "Bulgaria",

			  "BF" => "Burkina Faso",

			  "BI" => "Burundi",

			  "KH" => "Cambodia",

			  "CM" => "Cameroon",

			  "CA" => "Canada",

			  "CV" => "Cape Verde",

			  "KY" => "Cayman Islands",

			  "CF" => "Central African Republic",

			  "TD" => "Chad",

			  "CL" => "Chile",

			  "CN" => "China",

			  "CX" => "Christmas Island",

			  "CC" => "Cocos (Keeling) Islands",

			  "CO" => "Colombia",

			  "KM" => "Comoros",

			  "CG" => "Congo",

			  "CD" => "Congo, The Democratic Republic Of The",

			  "CK" => "Cook Islands",

			  "CR" => "Costa Rica",

			  "CI" => "Cote D'Ivoire",

			  "HR" => "Croatia (Local Name: Hrvatska)",

			  "CU" => "Cuba",

			  "CY" => "Cyprus",

			  "CZ" => "Czech Republic",

			  "DK" => "Denmark",

			  "DJ" => "Djibouti",

			  "DM" => "Dominica",

			  "DO" => "Dominican Republic",

			  "TP" => "East Timor",

			  "EC" => "Ecuador",

			  "EG" => "Egypt",

			  "SV" => "El Salvador",

			  "GQ" => "Equatorial Guinea",

			  "ER" => "Eritrea",

			  "EE" => "Estonia",

			  "ET" => "Ethiopia",

			  "FK" => "Falkland Islands (Malvinas)",

			  "FO" => "Faroe Islands",

			  "FJ" => "Fiji",

			  "FI" => "Finland",

			  "FR" => "France",

			  "FX" => "France, Metropolitan",

			  "GF" => "French Guiana",

			  "PF" => "French Polynesia",

			  "TF" => "French Southern Territories",

			  "GA" => "Gabon",

			  "GM" => "Gambia",

			  "GE" => "Georgia",

			  "DE" => "Germany",

			  "GH" => "Ghana",

			  "GI" => "Gibraltar",

			  "GR" => "Greece",

			  "GL" => "Greenland",

			  "GD" => "Grenada",

			  "GP" => "Guadeloupe",

			  "GU" => "Guam",

			  "GT" => "Guatemala",

			  "GN" => "Guinea",

			  "GW" => "Guinea-Bissau",

			  "GY" => "Guyana",

			  "HT" => "Haiti",

			  "HM" => "Heard And Mc Donald Islands",

			  "VA" => "Holy See (Vatican City State)",

			  "HN" => "Honduras",

			  "HK" => "Hong Kong",

			  "HU" => "Hungary",

			  "IS" => "Iceland",

			  "IN" => "India",

			  "ID" => "Indonesia",

			  "IR" => "Iran (Islamic Republic Of)",

			  "IQ" => "Iraq",

			  "IE" => "Ireland",

			  "IL" => "Israel",

			  "IT" => "Italy",

			  "JM" => "Jamaica",

			  "JP" => "Japan",

			  "JO" => "Jordan",

			  "KZ" => "Kazakhstan",

			  "KE" => "Kenya",

			  "KI" => "Kiribati",

			  "KP" => "Korea, Democratic People's Republic Of",

			  "KR" => "Korea, Republic Of",

			  "KW" => "Kuwait",

			  "KG" => "Kyrgyzstan",

			  "LA" => "Lao People's Democratic Republic",

			  "LV" => "Latvia",

			  "LB" => "Lebanon",

			  "LS" => "Lesotho",

			  "LR" => "Liberia",

			  "LY" => "Libyan Arab Jamahiriya",

			  "LI" => "Liechtenstein",

			  "LT" => "Lithuania",

			  "LU" => "Luxembourg",

			  "MO" => "Macau",

			  "MK" => "Macedonia, Former Yugoslav Republic Of",

			  "MG" => "Madagascar",

			  "MW" => "Malawi",

			  "MY" => "Malaysia",

			  "MV" => "Maldives",

			  "ML" => "Mali",

			  "MT" => "Malta",

			  "MH" => "Marshall Islands",

			  "MQ" => "Martinique",

			  "MR" => "Mauritania",

			  "MU" => "Mauritius",

			  "YT" => "Mayotte",

			  "MX" => "Mexico",

			  "FM" => "Micronesia, Federated States Of",

			  "MD" => "Moldova, Republic Of",

			  "MC" => "Monaco",

			  "MN" => "Mongolia",

			  "MS" => "Montserrat",

			  "MA" => "Morocco",

			  "MZ" => "Mozambique",

			  "MM" => "Myanmar",

			  "NA" => "Namibia",

			  "NR" => "Nauru",

			  "NP" => "Nepal",

			  "NL" => "Netherlands",

			  "AN" => "Netherlands Antilles",

			  "NC" => "New Caledonia",

			  "NZ" => "New Zealand",

			  "NI" => "Nicaragua",

			  "NE" => "Niger",

			  "NG" => "Nigeria",

			  "NU" => "Niue",

			  "NF" => "Norfolk Island",

			  "MP" => "Northern Mariana Islands",

			  "NO" => "Norway",

			  "OM" => "Oman",

			  "PK" => "Pakistan",

			  "PW" => "Palau",

			  "PA" => "Panama",

			  "PG" => "Papua New Guinea",

			  "PY" => "Paraguay",

			  "PE" => "Peru",

			  "PH" => "Philippines",

			  "PN" => "Pitcairn",

			  "PL" => "Poland",

			  "PT" => "Portugal",

			  "PR" => "Puerto Rico",

			  "QA" => "Qatar",

			  "RE" => "Reunion",

			  "RO" => "Romania",

			  "RU" => "Russian Federation",

			  "RW" => "Rwanda",

			  "KN" => "Saint Kitts And Nevis",

			  "LC" => "Saint Lucia",

			  "VC" => "Saint Vincent And The Grenadines",

			  "WS" => "Samoa",

			  "SM" => "San Marino",

			  "ST" => "Sao Tome And Principe",

			  "SA" => "Saudi Arabia",

			  "SN" => "Senegal",

			  "SC" => "Seychelles",

			  "SL" => "Sierra Leone",

			  "SG" => "Singapore",

			  "SK" => "Slovakia (Slovak Republic)",

			  "SI" => "Slovenia",

			  "SB" => "Solomon Islands",

			  "SO" => "Somalia",

			  "ZA" => "South Africa",

			  "GS" => "South Georgia, South Sandwich Islands",

			  "ES" => "Spain",

			  "LK" => "Sri Lanka",

			  "SH" => "St. Helena",

			  "PM" => "St. Pierre And Miquelon",

			  "SD" => "Sudan",

			  "SR" => "Suriname",

			  "SJ" => "Svalbard And Jan Mayen Islands",

			  "SZ" => "Swaziland",

			  "SE" => "Sweden",

			  "CH" => "Switzerland",

			  "SY" => "Syrian Arab Republic",

			  "TW" => "Taiwan",

			  "TJ" => "Tajikistan",

			  "TZ" => "Tanzania, United Republic Of",

			  "TH" => "Thailand",

			  "TG" => "Togo",

			  "TK" => "Tokelau",

			  "TO" => "Tonga",

			  "TT" => "Trinidad And Tobago",

			  "TN" => "Tunisia",

			  "TR" => "Turkey",

			  "TM" => "Turkmenistan",

			  "TC" => "Turks And Caicos Islands",

			  "TV" => "Tuvalu",

			  "UG" => "Uganda",

			  "UA" => "Ukraine",

			  "AE" => "United Arab Emirates",

			  "UM" => "United States Minor Outlying Islands",

			  "UY" => "Uruguay",

			  "UZ" => "Uzbekistan",

			  "VU" => "Vanuatu",

			  "VE" => "Venezuela",

			  "VN" => "Viet Nam",

			  "VG" => "Virgin Islands (British)",

			  "VI" => "Virgin Islands (U.S.)",

			  "WF" => "Wallis And Futuna Islands",

			  "EH" => "Western Sahara",

			  "YE" => "Yemen",

			  "YU" => "Yugoslavia",

			  "ZM" => "Zambia",

			  "ZW" => "Zimbabwe"


		);


		public function display_countries() {

		asort($this->world_countriess);

			foreach ($this->world_countries as $key => $value)

			  {

			  echo $key . ' > <a target="_blank" href="https://www.google.se/?gws_rd=cr#fp=bac353e51a633d27&q=' . $value . '">' . $value . '</a><br>';

			  }


		}


		public function eeti_world_options($args) {

			asort($this->world_countries);

			$outout = '<select name="country">';

			foreach ($this->world_countries as $key => $value)

			  {

			  	if ($this->$value == $args) {

			  		$outout .= '<option value="' . $key . '" selected>' . $value . '</option>';

			  	} else {

					$outout .= '<option value="' . $key . '">' . $value . '</option>';

				}

			  }

			 $outout .= '</select>';

			 return $outout;

		}


	public function setWorldCountry($country){

           $this->chosenCountry = $this->world_countries[$country];

        } 

	public function getWorldCountry(){

           return $this->chosenCountry;

        }	

	}


?>


<?php 


$world = new World();


if (isset($_POST['submit'])) {

  $world->setWorldCountry($_POST['country']);

  // print out the selected country

  echo 'you have chosen :'. $world->getCountry();	

}


?>


<form method="post" action="class-world.php">

	<?php echo $world->eeti_world_options('Uganda'); ?>

<input type="submit" name="submit">

</form>

 

Edited August 22, 2013 by gristoi

[Psycho]

Hi Psycho,

 

Thank you for getting back to me.

 

Yes, it is all valid. I have no problem assigning it to a variable, i just can't figure out how to search the $world_countries array using $selectedCountryName and return the value for use/output. Because $_POST value will be the key (abbreviation)...and i want to out put the value (Country name) found in the $world_countries array.

 

Matt, I provided the exact code you need! The select field will post the "key" of the selected value in the variable $_POST['country']. So, just use that as the key in the array $world_countries to get the selected value as I posted previously. I thought I made the variables names such that this would be clear.

$selectedCountryName = $world_countries[$_POST['country']];

 

Now, one additional step you could take would be to validate the value in the returned POST data

 

//Check if the POSTed value is a key in the countries array
if(array_key_exist($_POST['country'], $world_countries))
{
    //Set the selected value (i.e. country name)
    $selectedCountryName = $world_countries[$_POST['country']];
}
else
{
    //Posted value is not a key in the array - create error condition
}

[Matt_C]

Thank you Psycho and Gristoi, I now have it working thanks to you both. I used both methods in different ways in the app.