diff --git a/caca-php/examples/cacainfo.php b/caca-php/examples/cacainfo.php
index f13c9fa..f983434 100755
--- a/caca-php/examples/cacainfo.php
+++ b/caca-php/examples/cacainfo.php
@@ -46,8 +46,9 @@ EOT;
 }
 	
 
-if (!posix_isatty(STDOUT))
+if (php_sapi_name() != "cli") {
 	die("You have to run this program with php-cli!\n");
+}
 
 just_for_fun();
 
diff --git a/caca-php/examples/demo.php b/caca-php/examples/demo.php
index 4363566..f76b81a 100644
--- a/caca-php/examples/demo.php
+++ b/caca-php/examples/demo.php
@@ -361,8 +361,9 @@ function demo_render($cv, $bounds, $outline) {
 }
 
 
-if (!posix_isatty(STDOUT))
+if (php_sapi_name() != "cli") {
 	die("You have to run this program with php-cli!\n");
+}
 
 main();
 
diff --git a/caca-php/examples/dithering.php b/caca-php/examples/dithering.php
index ffb39a2..400b0e0 100755
--- a/caca-php/examples/dithering.php
+++ b/caca-php/examples/dithering.php
@@ -11,21 +11,25 @@
  *  http://sam.zoy.org/wtfpl/COPYING for more details.
  */
 
-if (!posix_isatty(STDOUT))
+if (php_sapi_name() != "cli") {
 	die("You have to run this program with php-cli!\n");
+}
 
 $img = imagecreatefrompng(dirname(__FILE__)."/logo-caca.png");
-if (!$img) 
+if (!$img)  {
 	die("Can not open image.\n");
+}
 
 $dither = caca_create_dither($img);
-if (!$dither) 
+if (!$dither)  {
 	die("Can not create dither. Maybe you compiled caca-php without gd support.\n");
+}
 
 $canvas = caca_create_canvas(0, 0);
 $display = caca_create_display($canvas);
-if (!$display) 
+if (!$display)  {
 	die("Can not create display.\n");
+}
 
 caca_dither_bitmap($canvas, 0, 0, caca_get_canvas_width($canvas), caca_get_canvas_height($canvas), $dither, $img);
 caca_refresh_display($display);
diff --git a/caca-php/examples/figfont.php b/caca-php/examples/figfont.php
index 3519634..4fc5784 100755
--- a/caca-php/examples/figfont.php
+++ b/caca-php/examples/figfont.php
@@ -23,8 +23,9 @@ function unistr_to_ords($str, $encoding = 'UTF-8'){
 	return $result;
 }
 
-if (!posix_isatty(STDOUT))
+if (php_sapi_name() != "cli") {
 	die("You have to run this program with php-cli!\n");
+}
 
 if ($argc < 3) {
 	die("Too few arguments.\nUsage: cmd <path of font> <utf8 string>\n");
diff --git a/caca-php/examples/polyline.php b/caca-php/examples/polyline.php
index 680950c..1b8f924 100755
--- a/caca-php/examples/polyline.php
+++ b/caca-php/examples/polyline.php
@@ -18,8 +18,9 @@ function transform($tbl, $tx, $ty, $sx, $sy) {
 	return $result;
 }
 
-if (!posix_isatty(STDOUT))
+if (php_sapi_name() != "cli") {
 	die("You have to run this program with php-cli!\n");
+}
 
 $canvas = caca_create_canvas(0, 0);
 $display = caca_create_display($canvas);
diff --git a/caca-php/examples/text.php b/caca-php/examples/text.php
index 8f5e8a0..87bae5d 100755
--- a/caca-php/examples/text.php
+++ b/caca-php/examples/text.php
@@ -15,8 +15,9 @@
  *  http://sam.zoy.org/wtfpl/COPYING for more details.
  */
 
-if (!posix_isatty(STDOUT))
+if (php_sapi_name() != "cli") {
 	die("You have to run this program with php-cli!\n");
+}
 
 $string =  <<<EOT
               |_|