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PHP Tutorial

PHP HOMEPHP IntroPHP InstallPHP SyntaxPHP CommentsPHP VariablesPHP Echo / PrintPHP Data TypesPHP StringsPHP NumbersPHP CastingPHP MathPHP ConstantsPHP Magic ConstantsPHP OperatorsPHP If...Else...ElseifPHP SwitchPHP LoopsPHP FunctionsPHP ArraysPHP SuperglobalsPHP RegExPHP RegEx Functions

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MySQL Database

MySQL DatabaseMySQL ConnectMySQL Create DBMySQL Create TableMySQL Insert DataMySQL Get Last IDMySQL Insert MultipleMySQL PreparedMySQL Select DataMySQL WhereMySQL Order ByMySQL Delete DataMySQL Update DataMySQL Limit Data

PHP XML

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PHP - AJAX

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PHP Examples

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PHP Reference

PHP OverviewPHP 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 CalendarPHP 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()gmstrftime()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 DirectoryPHP ErrorPHP ExceptionPHP 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 FilterPHP FTPPHP JSONPHP KeywordsPHP LibxmlPHP MailPHP MathPHP MiscPHP MySQLiPHP NetworkPHP Output ControlPHP RegExPHP SimpleXMLPHP StreamPHP 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_contains()str_ends_with()str_getcsv()str_ireplace()str_pad()str_repeat()str_replace()str_rot13()str_shuffle()str_split()str_starts_with()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 HandlingPHP XML ParserPHP ZipPHP Timezones

PHPQuiz

You can test your PHP skills with W3Schools' Quiz.

The Test

The test contains 25 questions and there is no time limit.

The test is not official, it's just a nice way to see how much you know, or don't know, about PHP.

Count Your Score

You will get 1 point for each correct answer. At the end of the Quiz,your total score will be displayed. Maximum score is 25 points.

Start the Quiz

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If you don't know PHP, we suggest that you read ourPHP Tutorial from scratch.

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