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PHP Overview PHP Array
array() array_change_key_case() array_chunk() array_column() array_combine() array_count_values() array_diff() array_diff_assoc() array_diff_key() array_diff_uassoc() array_diff_ukey() array_fill() array_fill_keys() array_filter() array_flip() array_intersect() array_intersect_assoc() array_intersect_key() array_intersect_uassoc() array_intersect_ukey() array_key_exists() array_keys() array_map() array_merge() array_merge_recursive() array_multisort() array_pad() array_pop() array_product() array_push() array_rand() array_reduce() array_replace() array_replace_recursive() array_reverse() array_search() array_shift() array_slice() array_splice() array_sum() array_udiff() array_udiff_assoc() array_udiff_uassoc() array_uintersect() array_uintersect_assoc() array_uintersect_uassoc() array_unique() array_unshift() array_values() array_walk() array_walk_recursive() arsort() asort() compact() count() current() each() end() extract() in_array() key() krsort() ksort() list() natcasesort() natsort() next() pos() prev() range() reset() rsort() shuffle() sizeof() sort() uasort() uksort() usort()
PHP Calendar
cal_days_in_month() cal_from_jd() cal_info() cal_to_jd() easter_date() easter_days() frenchtojd() gregoriantojd() jddayofweek() jdmonthname() jdtofrench() jdtogregorian() jdtojewish() jdtojulian() jdtounix() jewishtojd() juliantojd() unixtojd()
PHP Date
checkdate() date_add() date_create_from_format() date_create() date_date_set() date_default_timezone_get() date_default_timezone_set() date_diff() date_format() date_get_last_errors() date_interval_create_from_date_string() date_interval_format() date_isodate_set() date_modify() date_offset_get() date_parse_from_format() date_parse() date_sub() date_sun_info() date_sunrise() date_sunset() date_time_set() date_timestamp_get() date_timestamp_set() date_timezone_get() date_timezone_set() date() getdate() gettimeofday() gmdate() gmmktime() gmstrftimee() idate() localtime() microtime() mktime() strftime() strptime() strtotime() time() timezone_abbreviations_list() timezone_identifiers_list() timezone_location_get() timezone_name_from_abbr() timezone_name_get() timezone_offset_get() timezone_open() timezone_transitions_get() timezone_version_get()
PHP Directory
chdir() chroot() closedir() dir() getcwd() opendir() readdir() rewinddir() scandir()
PHP Error
debug_backtrace() debug_print_backtrace() error_get_last() error_log() error_reporting() restore_error_handler() restore_exception_handler() set_error_handler() set_exception_handler() trigger_error()
PHP Filesystem
basename() chgrp() chmod() chown() clearstatcache() copy() delete() dirname() disk_free_space() disk_total_space() diskfreespace() fclose() feof() fflush() fgetc() fgetcsv() fgets() fgetss() file() file_exists() file_get_contents() file_put_contents() fileatime() filectime() filegroup() fileinode() filemtime() fileowner() fileperms() filesize() filetype() flock() fnmatch() fopen() fpassthru() fputcsv() fputs() fread() fscanf() fseek() fstat() ftell() ftruncate() fwrite() glob() is_dir() is_executable() is_file() is_link() is_readable() is_uploaded_file() is_writable() is_writeable() lchgrp() lchown() link() linkinfo() lstat() mkdir() move_uploaded_file() parse_ini_file() parse_ini_string() pathinfo() pclose() popen() readfile() readlink() realpath() realpath_cache_get() realpath_cache_size() rename() rewind() rmdir() set_file_buffer() stat() symlink() tempnam() tmpfile() touch() umask() unlink()
PHP Filter
filter_has_var() filter_id() filter_input() filter_input_array() filter_list() filter_var() filter_var_array()
PHP FTP
ftp_alloc() ftp_cdup() ftp_chdir() ftp_chmod() ftp_close() ftp_connect() ftp_delete() ftp_exec() ftp_fget() ftp_fput() ftp_get() ftp_get_option() ftp_login() ftp_mdtm() ftp_mkdir() ftp_mlsd() ftp_nb_continue() ftp_nb_fget() ftp_nb_fput() ftp_nb_get() ftp_nb_put() ftp_nlist() ftp_pasv() ftp_put() ftp_pwd() ftp_quit() ftp_raw() ftp_rawlist() ftp_rename() ftp_rmdir() ftp_set_option() ftp_site() ftp_size() ftp_ssl_connect() ftp_systype()
PHP JSON
json_decode() json_encode()
PHP Libxml
libxml_clear_errors() libxml_disable_entity_loader() libxml_get_errors() libxml_get_last_error() libxml_set_external_entity_loader() libxml_set_streams_context() libxml_use_internal_errors()
PHP Mail
ezmlm_hash() mail()
PHP Math
abs() acos() acosh() asin() asinh() atan() atan2() atanh() base_convert() bindec() ceil() cos() cosh() decbin() dechex() decoct() deg2rad() exp() expm1() floor() fmod() getrandmax() hexdec() hypot() intdiv() is_finite() is_infinite() is_nan() lcg_value() log() log10() log1p() max() min() mt_getrandmax() mt_rand() mt_srand() octdec() pi() pow() rad2deg() rand() round() sin() sinh() sqrt() srand() tan() tanh()
PHP Misc
connection_aborted() connection_status() connection_timeout() constant() define() defined() die() eval() exit() get_browser() __halt_compiler() highlight_file() highlight_string() hrtime() ignore_user_abort() pack() php_strip_whitespace() show_source() sleep() sys_getloadavg() time_nanosleep() time_sleep_until() uniqid() unpack() usleep()
PHP MySQLi
affected_rows autocommit change_user character_set_name close commit connect connect_errno connect_error data_seek debug dump_debug_info errno error error_list fetch_all fetch_array fetch_assoc fetch_field fetch_field_direct fetch_fields fetch_lengths fetch_object fetch_row field_count field_seek get_charset get_client_info get_client_stats get_client_version get_connection_stats get_host_info get_proto_info get_server_info get_server_version info init insert_id kill more_results multi_query next_result options ping poll prepare query real_connect real_escape_string real_query reap_async_query refresh rollback select_db set_charset set_local_infile_handler sqlstate ssl_set stat stmt_init thread_id thread_safe use_result warning_count
PHP Network
checkdnsrr() closelog() dns_check_record() dns_get_mx() dns_get_record() fsockopen() gethostbyaddr() gethostbyname() gethostbynamel() gethostname() getmxrr() getprotobyname() getprotobynumber() getservbyname() getservbyport() header_register_callback() header_remove() header() headers_list() headers_sent() http_response_code() inet_ntop() inet_pton() ip2long() long2ip() openlog() pfsockopen() setcookie() setrawcookie() socket_get_status() socket_set_blocking() socket_set_timeout() syslog()
PHP SimpleXML
__construct() __tostring() addAttribute() addChild() asXML() attributes() children() count() getDocNamespaces() getName() getNamespaces() registerXPathNamespace() saveXML() simplexml_import_dom() simplexml_load_file() simplexml_load_string() xpath()
current() getchildren() haschildren() key() next() rewind() valid()
PHP Stream PHP String
addcslashes() addslashes() bin2hex() chop() chr() chunk_split() convert_cyr_string() convert_uudecode() convert_uuencode() count_chars() crc32() crypt() echo() explode() fprint() get_html_translation_table() hebrev() hebrevc() hex2bin() html_entity_decode() htmlentities() htmlspecialchars_decode() htmlspecialchars() implode() join() lcfirst() levenshtein() localeconv() ltrim() md5() md5_file() metaphone() money_format() nl_langinfo() nl2br() number_format() ord() parse_str() print() printf() quoted_printable_decode() quoted_printable_encode() quotemeta() rtrim() setlocale() sha1() sha1_file() similar_text() soundex() sprintf() sscanf() str_getcsv() str_ireplace() str_pad() str_repeat() str_replace() str_rot13() str_shuffle() str_split() str_word_count() strcasecmp() strchr() strcmp() strcoll() strcspn() strip_tags() stripcslashes() stripslashes() stripos() stristr() strlen() strnatcasecmp() strnatcmp() strncasecmp() strncmp() strpbrk() strpos() strrchr() strrev() strripos() strrpos() strspn() strstr() strtok() strtolower() strtoupper() strtr() substr() substr_compare() substr_count() substr_replace() trim() ucfirst() ucwords() vfprintf() vprintf() vsprintf() wordwrap()
PHP Variable Handling
boolval() debug_zval_dump() doubleval() is_countable() empty() floatval() get_defined_vars() get_resource_type() gettype() intval() is_array() is_bool() is_callable() is_double() is_float() is_int() is_integer() is_iterable() is_long() is_null() is_numeric() is_object() is_real() is_resource() is_scalar() is_string() isset() print_r() serialize() settype() strval() unserialize() unset() var_dump() var_export()
PHP XML Parser
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() xml_parse_into_struct() xml_parser_create_ns() xml_parser_create() xml_parser_free() xml_parser_get_option() xml_parser_set_option() xml_set_character_data_handler() xml_set_default_handler() xml_set_element_handler() xml_set_end_namespace_decl_handler() xml_set_external_entity_ref_handler() xml_set_notation_decl_handler() xml_set_object() xml_set_processing_instruction_handler() xml_set_start_namespace_decl_handler() xml_set_unparsed_entity_decl_handler()
PHP Zip
zip_close() zip_entry_close() zip_entry_compressedsize() zip_entry_compressionmethod() zip_entry_filesize() zip_entry_name() zip_entry_open() zip_entry_read() zip_open() zip_read()
PHP Timezones

PHP lchown() Function

❮ PHP Filesystem Reference

Example

Change the user ownership of a symbolic link:

<?php
$target = "downloads.php";
$link = "downloads";
symlink($target, $link);

lchown($link, 8)
?>

Definition and Usage

The lchown() function changes the user ownership of a symbolic link.

Note: This is not an HTML link, but a link in the filesystem.

Note: This function does not work on Windows platforms.

Syntax

lchown(file, group)

Parameter Values

Parameter Description
file Required. Specifies the path to the symlink
group Required. Specifies the new user by name or number

Technical Details

Return Value: TRUE on success, FALSE on failure
PHP Version: 5.1.3+
❮ PHP Filesystem Reference