Différences

Ci-dessous, les différences entre deux révisions de la page.

--- tips_informatiques:programmation:php:code [2009/07/13 12:11]
nico
+++ tips_informatiques:programmation:php:code [2009/08/12 00:00] (Version actuelle)
@@ Ligne 1: / Ligne 1: @@
-====== function startWith ======
+====== startWith ======
 <code php>
     /**
@@ Ligne 14: / Ligne 14: @@
 </code>
-====== function endWith ======
+====== endWith ======
 <code php>
     /**
@@ Ligne 29: / Ligne 29: @@
 </code>
-====== function debug ======
+====== debug ======
 <code php>
-function debug($object)
+class DebugTool
 {
-    echo '<div>';
+    public static function show($object, $title = null, $backtrace_index = 0)
-    $calledFrom = debug_backtrace();
-    echo '<strong>' . $calledFrom[0]['file'] . '</strong>';
-    echo ' (line <strong>' . $calledFrom[0]['line'] . '</strong>)';
-    echo('<pre>');
-    if(is_array($object))
     {
-        print_r($object);
+        echo '<div class="debug">';
+        $calledFrom = debug_backtrace();
+        echo '<strong>' . $calledFrom[$backtrace_index]['file'] . '</strong>';
+        echo ' (line <strong>' . $calledFrom[$backtrace_index]['line'] . '</strong>)';
+        if(isset($title))
+        {
+            echo '<h3>' . $title . '</h3>';
+        }
+        echo('<pre>');
+        if(is_array($object))
+        {
+            print_r($object);
+        }
+        elseif(is_a($object, 'DOMDocument'))
+        {
+            $object->formatOutput = true;
+            $xml_string = $object->saveXML();
+            echo htmlentities($xml_string);
+        }
+        elseif(is_a($object, 'DOMNodeList') || is_a($object, 'DOMElement'))
+        {
+            $dom = new DOMDocument();
+            $debugElement = $dom->createElement('debug');
+            $dom->appendChild($debugElement);
+            if(is_a($object, 'DOMNodeList'))
+            {
+                foreach ($object as $node)
+                {
+                	$node = $dom->importNode($node, true);
+                	$debugElement->appendChild($node);
+                }
+            }
+            elseif(is_a($object, 'DOMElement'))
+            {
+                $node = $dom->importNode($object, true);
+                $debugElement->appendChild($node);
+            }
+            $dom->formatOutput = true;
+            $xml_string = $dom->saveXML();
+            echo htmlentities($xml_string);
+        }
+        elseif(is_object($object))
+        {
+            echo get_class($object);
+        }
+        else
+        {
+            echo $object;
+        }
+        echo('</pre>');
+        echo '</div>';
     }
-    elseif(is_a($object, 'DOMDocument'))
+}
+/*******************************************************************/
+/***** GLOBAL FUNCTIONS ********************************************/
+/*******************************************************************/
+function debug($object, $title = null)
+{
+    DebugTool :: show($object, $title, 1);
+}
+</code>
+====== to_db_date ======
+<code php>
+/**
+* Converts a UNIX timestamp (as returned by time()) to a datetime string
+* for use in SQL queries.
+* @param int $date The date as a UNIX timestamp.
+* @return string The date in datetime format.
+*/
+static function to_db_date($date)
+{
+    if (isset($date))
     {
-        $object->formatOutput = true;
+        return date('Y-m-d H:i:s', $date);
-        $xml_string = $object->saveXML();
-        echo htmlentities($xml_string);
     }
-    elseif(is_a($object, 'DOMNodeList'))
+    else
     {
-        $dom = new DOMDocument();
+        return null;
-        $debugElement = $dom->createElement('debug');
+    }
-        $dom->appendChild($debugElement);
+}
+</code>
-        foreach ($object as $node)
+====== from_db_date ======
+<code php>
+/**
+* Converts a datetime value (as retrieved from the database) to a UNIX
+* timestamp (as returned by time()).
+* @param string $date The date as a UNIX timestamp.
+* @return int The date as a UNIX timestamp.
+*/
+static function from_db_date($date)
+{
+    if (isset ($date))
+    {
+        return strtotime($date);
+    }
+    else
+    {
+        return null;
+    }
+}
+</code>
+====== get_value_between_chars ======
+<code php>
+/**
+ * Return the string found between two characters. If an index is given, it returns the
+ * value at the index position
+ *
+ * @param string $opening_char
+ * @param string $closing_char
+ * @param int $index 0 based index
+ * @return string or null
+ */
+function get_value_between_chars($haystack, $index = 0, $opening_char = '[', $closing_char = ']')
+{
+    $offset = 0;
+    $found = true;
+    $value = null;
+    for ($i = 0; $i < $index + 1; $i++)
+    {
+        $op_pos = strpos($haystack, $opening_char, $offset);
+        if($op_pos !== false)
         {
-        	$node = $dom->importNode($node, true);
+            $cl_pos = strpos($haystack, $closing_char, $op_pos + 1);
-        	$debugElement->appendChild($node);
+            if($cl_pos !== false)
+            {
+                $value = substr($haystack, $op_pos + 1, $cl_pos - $op_pos - 1);
+                $offset = $cl_pos + 1;
+            }
+            else
+            {
+                $found = false;
+                break;
+            }
+        }
+        else
+        {
+            $found = false;
+            break;
         }
-        $dom->formatOutput = true;
-        $xml_string = $dom->saveXML();
-        echo htmlentities($xml_string);
     }
-    elseif(is_object($object))
+    if($found)
     {
-        echo get_class($object);
+        return $value;
     }
     else
     {
-        echo $object;
+        return null;
     }
-    echo('</pre>');
-    echo '</div>';
 }
 </code>
+====== to_multilevel_array ======
+<code php>
+/**
+ * Build an array from a list of strings
+ *
+ * E.g: Array with the following strings:
+ *
+ * 		'general_description[0][0][string]'
+ * 		'general_description[0][1][string]'
+ * 		'general_description[1][0][string]'
+ *
+ * @param array $strings Array of (strings => value) pairs to merge into a multilevel array
+ * @param string $opening_char
+ * @param string $closing_char
+ */
+public static function to_multilevel_array($strings, $opening_char = '[', $closing_char = ']')
+{
+    $array = array();
+    foreach ($strings as $string => $value)
+    {
+        self :: set_next_level_array($array, $string, $value, $opening_char, $closing_char);
+    }
+    return $array;
+}
+private static function set_next_level_array(&$container_array, $string, $value, $opening_char = '[', $closing_char = ']')
+{
+    $key = self :: get_value_between_chars($string, 0, $opening_char, $closing_char);
+    $sub_string = substr($string, strpos($string, $closing_char) + 1);
+    if(isset($sub_string) && strlen($sub_string) > 0)
+    {
+        if(isset($container_array[$key]))
+        {
+            $sub_array = $container_array[$key];
+        }
+        else
+        {
+            $sub_array = array();
+        }
+        self :: set_next_level_array($sub_array, $sub_string, $value, $opening_char, $closing_char);
+        $container_array[$key] = $sub_array;
+    }
+    else
+    {
+        if(isset($container_array[$key]))
+        {
+            $container_array[$key] = array_merge($container_array[$key], $value);
+        }
+        else
+        {
+            $container_array[$key] = $value;
+        }
+    }
+}
+</code>

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