| Source: lesson_14_e0_writing_in_mysql.php | Résultat |
<?php //Début du programme
require ("../mysql_connexion/mysql_connexion.php");
require ("../commons/functions.php");
$tableName = "atelierphp_exe_pass_words" ;
//$table_name = "atelierphp_exe_pass_words" ;
//on enlève la table si elle existait déjà
//bien sûr il faudrait une clé primaire sur l'utilisateur
if (mySQLtable_exist($tableName)) {
$result = mysqli_query($mysqli,"select * from atelierphp_exe_pass_words ");
$nb_rows = mysqli_num_rows($result);
if ($nb_rows >19 ) {
echo "Arrivé à 20 enregistrements, j'efface la table et je la recrée";
drop_table($tableName);
$result = mysqli_query($mysqli,"CREATE TABLE $tableName
(PASS_WORD_USER CHAR(9) not null , PASS_WORD_PASS TEXT )");
if ($result == 1)
{
echo "table created<br/>";
}
else
{
echo "error creating the table<br/>";
}
}
}
$user_name = "Maria" ;
$user_pass = "maria_pass" ;
insert_a_row($user_name,$user_pass);
$user_name = "Laura" ;
$user_pass = "laura_pass" ;
insert_a_row($user_name,$user_pass);
//read the table
echo "<table border=1><tr><th>User</th><th>Pass</th></tr>";
$result = mysqli_query($mysqli,"select * from atelierphp_exe_pass_words ");
$fields = mysqli_num_fields($result);
while ($row=mysqli_fetch_array($result))
{
echo "<tr>";
for($i=0;$i<$fields;$i++)
{
echo "<td>$row[$i]</td>";
}
echo "</tr>";
}
echo "</table>";
//----------------------------------------------------------------
function insert_a_row($user_name,$user_pass)
{ global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
$result = mysqli_query($mysqli,"INSERT INTO atelierphp_exe_pass_words
(PASS_WORD_USER, PASS_WORD_PASS) VALUES
('$user_name','$user_pass')");
if ($result == 1)
{
echo "value inserted<br/>";
}
else
{
echo "error inserting in the table the table<br/>";
}
}
?>
Fichier : ../commons/connect_to_db.php
<?php
@include ("../mysql_connexion/mysql_connexion.php");
@include ("../../mysql_connexion/mysql_connexion.php");
function mySQLdie($error = "")
{
global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
global $strError,$strSQLQuery ;
global $strMySQLSaid, $strBack, $sql_query;
echo "<b> Error : $strError </b>";
if(isset($sql_query) && !empty($sql_query))
{
echo "$strSQLQuery: <pre>$sql_query</pre><p>";
}
if(empty($error))
echo $strMySQLSaid.mysqli_error($mysqli);
else
echo $strMySQLSaid.$error;
echo "<br/><a href=\"javascript:history.go(-1)\">
$strBack</a>";
exit;
}
?>
Fichier : ../commons/functions.php
<?php
// Pour savoir si une table existe
function mySQLtable_exist($tableName)
{
global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
$query = "SELECT COUNT(*) FROM $tableName";
$result = mysqli_query($mysqli,$query);
$num_rows = @mysqli_num_rows($result);
if($num_rows)
{
echo "<small>La table existait déjà <br/>";
return TRUE;
}
else
{
echo "<small>La table n'existait pas <br/>";
return FALSE;
}
}
// Supprime une table avec message approprié
//attention $tableName et non $table_name
function drop_table($tableName)
{
global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
echo "Efface table ".$tableName."<br/>";
$result = mysqli_query($mysqli,"DROP TABLE $tableName") ;
if ($result == 1)
{
echo "Table effacée <br/>";
}
else
{
echo "Erreur en effaçant the table<br/>";
}
}
// Insère un enregistrement dans une table
function insert_a_row_1
($table_name, $field_name_1, $field_name_2,
$field_1, $field_2)
{
global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
$result = mysqli_query($mysqli,"INSERT INTO $table_name
($field_name_1,$field_name_2)
VALUES ('$field_1','$field_2')");
if ($result == 1)
{
echo "valeur $field_2 insérée dans $field_name_2
<br/>";
}
else
{
echo "erreur lors de l'insersion $field_2
dans la table $table_name <br/>";
}
}
function insert_a_row_2
($table_name, $field_name_1, $field_name_2,
$field_name_3, $field_1, $field_2, $field_3)
{
global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
$result = mysqli_query($mysqli,"INSERT INTO $table_name
($field_name_1,$field_name_2,$field_name_3)
VALUES ('$field_1','$field_2','$field_3')");
if ($result == 1)
{
echo "value $field_2 inserted in $field_name_2
<br/>";
}
else
{
echo "error inserting $field_2 in the table
$table_name <br/>";
}
}
//lecture d'une table
function readTable
($tableName,$field_1,$field_2="",$field_3="",
$field_4="",$field_5="")
{
global $mysqli;
require_once("../mysql_connexion/mysql_connexion.php");
echo "Lecture de la table $tableName :";
echo
"<table border=1><tr><th>$field_1
</th><th>$field_2</th>
<th>$field_3</th><th>$field_4</th>
<th>$field_5</th></tr>";
$result=mysqli_query($mysqli,"select * from $tableName ");
$fields = mysqli_num_fields($result);
while ($row=mysqli_fetch_array($result))
{
echo "<tr>";
for($i=0;$i<$fields;$i++)
{
echo "<td>$row[$i]</td>";
}
echo "</tr>";
}
echo "</table>";
}
?>
|
La table existait déjà
error inserting in the table the table
error inserting in the table the table
| User | Pass |
|---|
| Laura | laura_pass | | Maria | maria_pass |
|
