Added an example showing use of %pragmas and init/shutdown code injection.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7452 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/php4/pragmas/BUILD.sh

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+#! /bin/sh -e
+
+${SWIG:=swig}  -php4 -make example.i
+make
+php -d extension_dir=. runme.php4

Examples/php4/pragmas/example.i

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+/* File : example.i */
+%module example
+
+%init{
+  zend_printf("This was %%init\n");
+}
+
+%minit{
+  zend_printf("This was %%minit\n");
+}
+
+%mshutdown{
+  zend_printf("This was %%shutdown\n");
+}
+
+%rinit{
+  zend_printf("This was %%rinit\n");
+}
+
+%rshutdown{
+  zend_printf("This was %%rshutdown\n");
+}
+
+%pragma(php4) include="hi.php";
+
+%pragma(php4) code="
+# This code is inserted into example.php
+echo \"this was php4 code\\n\";
+"
+
+%pragma(php4) phpinfo="php_info_print_table_start();"

Examples/php4/pragmas/runme.php4

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+<?php
+
+require "example.php";
+
+?>