Prettier

extras/core.php

 $method = $_SERVER['REQUEST_METHOD'];
 $request = explode('/', trim($_SERVER['PATH_INFO'],'/'));
 $input = json_decode(file_get_contents('php://input'),true);
+if (!$input) $input = array();
 
 // connect to the mysql database
 $link = mysqli_connect('localhost', 'php-crud-api', 'php-crud-api', 'php-crud-api');
 $table = preg_replace('/[^a-z0-9_]+/i','',array_shift($request));
 $key = array_shift($request)+0;
 
-if ($input) {
-  // escape the columns and values from the input object
-  $columns = preg_replace('/[^a-z0-9_]+/i','',array_keys($input));
-  $values = array_map(function ($value) use ($link) {
-    if ($value===null) return null;
-    return mysqli_real_escape_string($link,(string)$value);
-  },array_values($input));
+// escape the columns and values from the input object
+$columns = preg_replace('/[^a-z0-9_]+/i','',array_keys($input));
+$values = array_map(function ($value) use ($link) {
+  if ($value===null) return null;
+  return mysqli_real_escape_string($link,(string)$value);
+},array_values($input));
 
-  // build the SET part of the SQL command
-  $set = '';
-  for ($i=0;$i<count($columns);$i++) {
-    $set.=($i>0?',':'').'`'.$columns[$i].'`=';
-    $set.=($values[$i]===null?'NULL':'"'.$values[$i].'"');
-  }
+// build the SET part of the SQL command
+$set = '';
+for ($i=0;$i<count($columns);$i++) {
+  $set.=($i>0?',':'').'`'.$columns[$i].'`=';
+  $set.=($values[$i]===null?'NULL':'"'.$values[$i].'"');
 }
 
 // create SQL based on HTTP method