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(PECL)

xdiff_string_patch --  Patch a string with an unified diff

Description

string xdiff_string_patch ( string str, string patch [, int flags [, string &error]] )

xdiff_string_patch() patches string str with unified patch in string patch .

flags can be either XDIFF_PATCH_NORMAL (default mode, normal patch) or XDIFF_PATCH_REVERSE (reversed patch).

If error is passed then rejected parts are stored inside this variable.

Example 1. xdiff_string_patch() example

The following code applies changes to some article.

<?php
$old_article = file_get_contents('./old_article.txt');
$diff = $_SERVER['patch']; /* Let's say that someone pasted a patch to html form */

$errors = '';

$new_article = xdiff_string_patch($old_article, $diff, XDIFF_PATCH_NORMAL, $errors);
if (is_string($new_article)) {
    echo "New article:\n";
    echo $new_article;
}

if (strlen($errors)) {
    echo "Rejects: \n";
    echo $errors;
}

?>

Returns a patched string.

Related Function(s)

xdiff_file_patch()

xml_parser_create()

xml_parser_set_option()

xml_parser_create_ns()

xml_set_element_handler()

xml_set_character_data_handler()

xml_set_processing_instruction_handler()

xml_set_default_handler()

xml_set_unparsed_entity_decl_handler()

xml_set_notation_decl_handler()

xml_set_external_entity_ref_handler()

xml_parser_get_option()

xml_parse()

utf8_decode()

utf8_encode()

xml_error_string()

xml_get_current_byte_index()

xml_get_current_column_number()

xml_get_current_line_number()

xml_get_error_code()

xml_parse_into_struct()

xml_parser_free()

xml_set_end_namespace_decl_handler()

xml_set_object()

xml_set_start_namespace_decl_handler()