Email Validation Moderate Passed Challenge Added

2-moderateComplexityChallenges/emailValidationByKestutis.php

@@ -0,0 +1,77 @@
+<?php
+/*
+ * @author - Kestutis ITDev
+ * @date - 2013.07.06
+ * @email - [email protected]
+ * @description - CodeEval Challenge #2, e-mail validator, stackprint
+ * @version - v1.4
+*/
+// is that is a linux command line interface?
+$CLI = true;
+$fileName = $CLI ? $argv[1] : "data2.txt";
+
+// open the file
+$fileHandler = fopen($fileName, "r");
+
+// Check if file is open
+if ($fileHandler)
+{
+    while (true)
+	{
+        $value = fgets($fileHandler);
+        if($value == false)
+        {
+            // break loop if we reached end of file
+            break;
+        }
+        //kDebug($value, $CLI);
+
+		// Trim ending space, and apply basic security
+		$email = htmlspecialchars(trim($value));
+
+		// Verify email
+		$ret = isEmail($email) ? "true" : "false";
+		// Print out the result;
+		kPrint($ret, $CLI);
+	}
+}
+
+// Custom preg-match function with not-array check
+function preg_check($expression, $value) {
+	if (!is_array($value)) {
+		return preg_match($expression, $value);
+	} else {
+		return false;
+	}
+}
+
+// Check if that is an correct e-mail address		
+function isEmail($emailAddress)
+{
+	if (preg_check("/^[-0-9A-Z_\.]{1,50}@([-0-9A-Z_\.]+\.){1,50}([0-9A-Z]){2,4}$/i", $emailAddress))
+	{
+		return true;
+	} else {
+		return false;
+	}
+}	
+
+// Print based on interface
+function kPrint($line, $CLI = false)
+{
+	if(strlen($line) > 0)
+	{
+		$output = $CLI ? $line."\n" : $line."<br />";
+		print $output;
+	}
+}
+
+// Print based on interface
+function kDebug($variable, $CLI = false)
+{
+	print "[DEBUG]: (";
+	var_dump($variable);
+	$output = $CLI ? ")\n" : ")<br />";
+	print $output;
+}
+?>