force cli on remaining examples so that apache doesn't pop up a window

(this actually happens with the cocoa driver!)

caca-php/examples/cacapig.php

@@ -16,6 +16,9 @@
  *  http://sam.zoy.org/wtfpl/COPYING for more details.
  */
 
+if (php_sapi_name() != "cli") {
+	die("You have to run this program with php-cli!\n");
+}
 
 $pig_str = <<<EOT
                                    

caca-php/examples/colors.php

@@ -17,6 +17,10 @@
    *  http://sam.zoy.org/wtfpl/COPYING for more details.
    */
 
+if (php_sapi_name() != "cli") {
+	die("You have to run this program with php-cli!\n");
+}
+
 $cv = caca_create_canvas(80, 24);
 if(!$cv)
 {

caca-php/examples/fullwidth.php

@@ -18,6 +18,10 @@
  *  http://sam.zoy.org/wtfpl/COPYING for more details.
  */
 
+if (php_sapi_name() != "cli") {
+	die("You have to run this program with php-cli!\n");
+}
+
 define('CACA', "쫊쫊쫊쫊쫊쫊쫊쫊쫊쫊쫊쫊쫊쫊쫊");
 
 $cv = caca_create_canvas(0, 0);

caca-php/examples/render.php

@@ -1,6 +1,10 @@
 #!/usr/bin/php5
 <?
 
+if (php_sapi_name() != "cli") {
+	die("You have to run this program with php-cli!\n");
+}
+
 $pig_str = <<<EOT
                                    
     _._ _..._ .-',     _.._(`))    

caca-php/examples/truecolor.php

@@ -18,6 +18,10 @@
  *  http://sam.zoy.org/wtfpl/COPYING for more details.
  */
 
+if (php_sapi_name() != "cli") {
+	die("You have to run this program with php-cli!\n");
+}
+
 $cv = caca_create_canvas(32, 16);
 if(!$cv) {
 	die("Failed to create canvas\n");