上传文件到postgresql Erreur？

Question

我创建了一个表单来将文件导入我的数据库postgessql，但是我有这个错误：

代码是：

<?php
    $name = $_FILES['fichier']['name'];
         //$raster = pg_escape_string($_POST['fichier']); 
         $db = pg_connect('host=localhost port=5432 dbname=gisdb user=**** password=*****'); 
         $output = shell_exec('raster2pgsql -a -s 32629 -I -C -M $_FILES["fichier"]["tmp_name"] eau_param_hydro | psql -U postgres -d gisdb -h localhost -p 5432 ');
        // $query = "INSERT INTO eau_param_hydro(rast,filname) VALUES('".$output."','".$name."')"; 
         $result = pg_query($db,"INSERT INTO eau_param_hydro(rast,filename) VALUES('.$output.','.$name.');");
         if (!$result) { 
         $errormessage = pg_last_error(); 
         echo "Error with query: " . $errormessage; 
         exit(); 
pg_close(); 
?>