Escape characters

README.md

@@ -1,4 +1,2 @@
-Code Samples
-
-Code in this branch are useful in every language and can be easily translated in other languages.
-Just read the concept, not the code
+Every language-specific code is in the language branch.
+For algorithms that can be used in every language, look in the generic branch

bruteforce.py

@@ -1,50 +0,0 @@
-'''
-PYTHON CODE BRUTEFORCES WORDS FROM GIVEN CHAR LIST.
-ENDLESS WORD LIST CAN BE GENERATED, UNTIL PROGRAM STOPPED
-EVERY 100 WORDS GENERATED THEY ARE SAVED ON FILE
-'''
-
-
-lPossibleChars = ("a", "b", "c", "d", "e", "f")
-sWord = ""
-sFileName = "words.txt"
-lGenWords = []
-dWordsForSave = 100
-
-def bruteforce(index):
-    global sWord, lPossibleChars
-
-    #generates only if the index to change is less than currrent word length
-    if index < len(sWord):
-        for i in range(len(lPossibleChars)):
-
-            #makes the word a list
-            lWord = list(sWord)
-            #changes the index
-            lWord[index] = lPossibleChars[i]
-            #makes the list back a word
-            sWord = ''.join(lWord)
-
-            print(sWord)
-            #adds to the list
-            lGenWords.append(sWord)
-
-            #goes on for the next index
-            bruteforce(index + 1)
-
-
-while True:
-    #saves word on file (append mode) and cleares the list
-    if len(lGenWords) >= dWordsForSave:
-        f = open(sFileName, "a")
-
-        for s in lGenWords:
-            f.write(s + "\n")
-
-        lGenWords[:] = []
-        f.close()
-
-    #starts bruteforcing the word and adds a new character when ended
-    if len(sWord) > 0:
-        bruteforce(0)
-    sWord += lPossibleChars[0]

display_img_from_url.php

@@ -0,0 +1,25 @@
+<?php
+
+
+/*
+ * SHOWING IMAGE GIVEN FROM URL *
+ */
+
+$url = 'http://www.google.com/doodle4google/images/d4g_logo_global.jpg';
+$allow = ['gif', 'jpg', 'png'];  // allowed extensions
+$img = file_get_contents($url);
+$url_info = pathinfo($url);
+
+// if allowed extension
+if(in_array($url_info['extension'], $allow)) {
+    // Format the image SRC:  data:{mime};base64,{img_data_base64};
+    $src = 'data:image/'. $url_info['extension'] .';base64,'. base64_encode($img);
+
+    // add the base64 image into a <img> to display it
+    $re = '<img src="'. $src .'" alt="'. $url_info['basename'] .'" />';
+}
+else $re = 'Invalid extension: '. $url_info['extension'];
+
+echo $re;  // output $re data
+
+?>

escape_chars.php

@@ -0,0 +1,10 @@
+<?php
+
+//ESCAPE CHARACTERS IN PHP-HTML
+
+$word = "ciao";
+echo "<pre>\n" . $word . "</pre>";
+echo "<pre>\n\tciao2</pre>";
+
+
+?>

random_web_page.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * RANDOM WEB PAGE GENERATOR, WITH RANDOM TEXT AND SINGLE IMAGE
+ */
+
+//first of all makes all the things for the image and sames it into $re
+$url = 'http://www.google.com/doodle4google/images/d4g_logo_global.jpg';
+$allow = ['gif', 'jpg', 'png'];  // allowed extensions
+$img = file_get_contents($url);
+$url_info = pathinfo($url);
+
+// if allowed extension
+if (in_array($url_info['extension'], $allow)) {
+    // Format the image SRC:  data:{mime};base64,{img_data_base64};
+    $src = 'data:image/' . $url_info['extension'] . ';base64,' . base64_encode($img);
+
+    // add the base64 image into a <img> to display it
+    $re = '<img src="' . $src . '" alt="' . $url_info['basename'] . '"style="width:406px;height:109px;" />';
+} else $re = 'Invalid extension: ' . $url_info['extension'];
+
+$chars = "qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM<>,;.:-_ÒÀÙÈ+Ç°§É*òàùè+{}#[]@1234567890'ì?^\|!£$%&/()=?^\"";
+
+for ($i = 0; $i < random_int(40, 50); $i++) {
+    $word = "";
+    for ($j = 0; $j < random_int(1,4); $j++) {
+
+        $word .= substr($chars, random_int(0,strlen($chars) / 2), random_int(strlen($chars) / 2, strlen($chars)));
+    }
+    echo "<pre>\n" . $word . "</pre>";
+
+    if (random_int(0, 10) <= 1) {
+        echo "<pre>\n" . $re . "</pre>";
+    }
+}
+
+
+?>

random_word_slowdown.php

@@ -0,0 +1,25 @@
+<?php
+
+
+/*
+ *  THIS CODE SLOWS DOWN THE BROWSER, CALCULATING THE MD5 HASH OF THE
+ *  MILLISECONDS OF THE THE CURRENT SECONDS AND PRINTING THEM IN VARIABLE-LENGTH LINES
+ *  ONYL TESTED ON LOCAL MACHINE: I DON'T WHAT HAPPENS IF EXECUTED FROM A REMOTE HOST
+ */
+
+header('Content-type: text/plain');
+
+
+for ($i = 0; $i < 20; $i++) {
+
+    for ($j = 0; j < random_int(10, 15); $j++) {
+        $rand = substr(md5(microtime()), 0, random_int(25, 50));
+        print $rand . " ";
+    }
+
+
+    print "\n";
+
+}
+
+?>