Sandbox
PHP Functions
Donate/Get Premium
Login / Register
OnlinePHP
.io
# Execute and compare PHP Online
Sandbox
PHP Functions
Donate/Get Premium
Login / Register
OnlinePHP.io
Online Tools
OnlinePHP.io Functions
Find your function:
Search
Arrays
array
- Create an array
array_change_key_case
- Changes the case of all keys in an array
array_chunk
- Split an array into chunks
array_column
- Return the values from a single column in the input array
array_combine
- Creates an array by using one array for keys and another for its values
array_count_values
- Counts all the values of an array
array_diff
- Computes the difference of arrays
array_diff_assoc
- Computes the difference of arrays with additional index check
array_diff_key
- Computes the difference of arrays using keys for comparison
array_fill
- Fill an array with values
array_fill_keys
- Fill an array with values, specifying keys
array_flip
- Exchanges all keys with their associated values in an array
array_intersect
- Computes the intersection of arrays
array_intersect_assoc
- Computes the intersection of arrays with additional index check
array_intersect_key
- Computes the intersection of arrays using keys for comparison
array_is_list
- Checks whether a given [array] is a list
array_key_exists
- Checks if the given key or index exists in the array
array_key_first
- Gets the first key of an array
array_key_last
- Gets the last key of an array
array_keys
- Return all the keys or a subset of the keys of an array
array_merge
- Merge one or more arrays
array_merge_recursive
- Merge one or more arrays recursively
array_multisort
- Sort multiple or multi-dimensional arrays
array_pad
- Pad array to the specified length with a value
array_pop
- Pop the element off the end of array
array_product
- Calculate the product of values in an array
array_push
- Push one or more elements onto the end of array
array_rand
- Pick one or more random keys out of an array
array_replace
- Replaces elements from passed arrays into the first array
array_replace_recursive
- Replaces elements from passed arrays into the first array recursively
array_reverse
- Return an array with elements in reverse order
array_search
- Searches the array for a given value and returns the first corresponding key if successful
array_shift
- Shift an element off the beginning of array
array_slice
- Extract a slice of the array
array_splice
- Remove a portion of the array and replace it with something else
array_sum
- Calculate the sum of values in an array
array_unique
- Removes duplicate values from an array
array_unshift
- Prepend one or more elements to the beginning of an array
array_values
- Return all the values of an array
arsort
- Sort an array in descending order and maintain index association
asort
- Sort an array in ascending order and maintain index association
count
- Counts all elements in an array or in a Countable object
in_array
- Checks if a value exists in an array
krsort
- Sort an array by key in descending order
ksort
- Sort an array by key in ascending order
natcasesort
- Sort an array using a case insensitive "natural order" algorithm
natsort
- Sort an array using a "natural order" algorithm
range
- Create an array containing a range of elements
rsort
- Sort an array in descending order
sort
- Sort an array in ascending order
BCMath
bcadd
- Add two arbitrary precision numbers
bccomp
- Compare two arbitrary precision numbers
bcdiv
- Divide two arbitrary precision numbers
bcmod
- Get modulus of an arbitrary precision number
bcmul
- Multiply two arbitrary precision numbers
bcpow
- Raise an arbitrary precision number to another
bcpowmod
- Raise an arbitrary precision number to another, reduced by a specified modulus
bcscale
- Set or get default scale parameter for all bc math functions
bcsqrt
- Get the square root of an arbitrary precision number
bcsub
- Subtract one arbitrary precision number from another
Calendar
cal_days_in_month
- Return the number of days in a month for a given year and calendar
cal_from_jd
- Converts from Julian Day Count to a supported calendar
cal_info
- Returns information about a particular calendar
cal_to_jd
- Converts from a supported calendar to Julian Day Count
easter_date
- Get Unix timestamp for midnight on Easter of a given year
easter_days
- Get number of days after March 21 on which Easter falls for a given year
frenchtojd
- Converts a date from the French Republican Calendar to a Julian Day Count
gregoriantojd
- Converts a Gregorian date to Julian Day Count
jddayofweek
- Returns the day of the week
jdmonthname
- Returns a month name
jdtofrench
- Converts a Julian Day Count to the French Republican Calendar
jdtogregorian
- Converts Julian Day Count to Gregorian date
jdtojewish
- Converts a Julian day count to a Jewish calendar date
jdtojulian
- Converts a Julian Day Count to a Julian Calendar Date
jdtounix
- Convert Julian Day to Unix timestamp
jewishtojd
- Converts a date in the Jewish Calendar to Julian Day Count
juliantojd
- Converts a Julian Calendar date to Julian Day Count
unixtojd
- Convert Unix timestamp to Julian Day
Cryptography and Hashing
hash
- Generate a hash value (message digest)
hash_algos
- Return a list of registered hashing algorithms
hash_equals
- Timing attack safe string comparison
hash_hkdf
- Generate a HKDF key derivation of a supplied key input
hash_hmac
- Generate a keyed hash value using the HMAC method
hash_hmac_algos
- Return a list of registered hashing algorithms suitable for hash_hmac
hash_pbkdf2
- Generate a PBKDF2 key derivation of a supplied password
random_bytes
- Generates cryptographically secure pseudo-random bytes
random_int
- Generates cryptographically secure pseudo-random integers
Custom tools
IP Address finder
- Shows your current IP address and hostname
Password Generator
- Create a secure password with this simple online tool
Date and Time
checkdate
- Validate a Gregorian date
date
- Format a local time/date
getdate
- Get date/time information
gettimeofday
- Get current time
gmdate
- Format a GMT/UTC date/time
gmmktime
- Get Unix timestamp for a GMT date
gmstrftime
- Format a GMT/UTC time/date according to locale settings
hrtime
- Get the system's high resolution time
idate
- Format a local time/date as integer
localtime
- Get the local time
microtime
- Return current Unix timestamp with microseconds
mktime
- Get Unix timestamp for a date
strftime
- Format a local time/date according to locale settings
strptime
- Parse a time/date generated with
strftime
strtotime
- Parse about any English textual datetime description into a Unix timestamp
time
- Return current Unix timestamp
Filesystem
basename
- Returns trailing name component of path
file_get_contents
- Reads entire file into a string
file_put_contents
- Write data to a file
pathinfo
- Returns information about a file path
General
hex2bin
- Decodes a hexadecimally encoded binary string
json_decode
- Decodes a JSON string
json_encode
- Returns the JSON representation of a value
pack
- Pack data into binary string
serialize
- Generates a storable representation of a value
token_name
- Get the symbolic name of a given PHP token
uniqid
- Generate a unique ID
unpack
- Unpack data from binary string
unserialize
- Creates a PHP value from a stored representation
zlib_decode
- Uncompress any raw/gzip/zlib encoded data
zlib_encode
- Compress data with the specified encoding
iconv
iconv_get_encoding
- Retrieve internal configuration variables of iconv extension
iconv_mime_decode
- Decodes a MIME header field
iconv_mime_decode_headers
- Decodes multiple MIME header fields at once
iconv_mime_encode
- Composes a MIME header field
iconv_strlen
- Returns the character count of string
iconv_strpos
- Finds position of first occurrence of a needle within a haystack
iconv_strrpos
- Finds the last occurrence of a needle within a haystack
iconv_substr
- Cut out part of a string
Language and Character Encoding
idn_to_ascii
- Convert domain name to IDNA ASCII form
idn_to_utf8
- Convert domain name from IDNA ASCII to Unicode
Math
abs
- Absolute value
acos
- Arc cosine
acosh
- Inverse hyperbolic cosine
asin
- Arc sine
asinh
- Inverse hyperbolic sine
atan
- Arc tangent
atan2
- Arc tangent of two variables
atanh
- Inverse hyperbolic tangent
base_convert
- Convert a number between arbitrary bases
bindec
- Binary to decimal
ceil
- Round fractions up
cos
- Cosine
cosh
- Hyperbolic cosine
decbin
- Decimal to binary
dechex
- Decimal to hexadecimal
decoct
- Decimal to octal
deg2rad
- Converts the number in degrees to the radian equivalent
exp
- Calculates the exponent of e
expm1
- Returns exp(number) - 1, computed in a way that is accurate even when the value of number is close to zero
fdiv
- Divides two numbers, according to IEEE 754
floor
- Round fractions down
fmod
- Returns the floating point remainder (modulo) of the division of the arguments
getrandmax
- Show largest possible random value
hexdec
- Hexadecimal to decimal
hypot
- Calculate the length of the hypotenuse of a right-angle triangle
intdiv
- Integer division
is_finite
- Finds whether a value is a legal finite number
is_infinite
- Finds whether a value is infinite
is_nan
- Finds whether a value is not a number
lcg_value
- Combined linear congruential generator
log
- Natural logarithm
log10
- Base-10 logarithm
log1p
- Returns log(1 + number), computed in a way that is accurate even when the value of number is close to zero
max
- Find highest value
min
- Find lowest value
mt_getrandmax
- Show largest possible random value
mt_rand
- Generate a random value via the Mersenne Twister Random Number Generator
mt_srand
- Seeds the Mersenne Twister Random Number Generator
octdec
- Octal to decimal
pi
- Get value of pi
pow
- Exponential expression
rad2deg
- Converts the radian number to the equivalent number in degrees
rand
- Generate a random integer
round
- Rounds a float
sin
- Sine
sinh
- Hyperbolic sine
sqrt
- Square root
srand
- Seed the random number generator
tan
- Tangent
tanh
- Hyperbolic tangent
Multibyte String
mb_check_encoding
- Check if strings are valid for the specified encoding
mb_chr
- Return character by Unicode code point value
mb_convert_case
- Perform case folding on a string
mb_convert_encoding
- Convert a string from one character encoding to another
mb_convert_kana
- Convert "kana" one from another ("zen-kaku", "han-kaku" and more)
mb_decode_mimeheader
- Decode string in MIME header field
mb_decode_numericentity
- Decode HTML numeric string reference to character
mb_detect_encoding
- Detect character encoding
mb_encode_mimeheader
- Encode string for MIME header
mb_encode_numericentity
- Encode character to HTML numeric string reference
mb_encoding_aliases
- Get aliases of a known encoding type
mb_ereg
- Regular expression match with multibyte support
mb_ereg_match
- Regular expression match for multibyte string
mb_ereg_replace
- Replace regular expression with multibyte support
mb_eregi
- Regular expression match ignoring case with multibyte support
mb_eregi_replace
- Replace regular expression with multibyte support ignoring case
mb_get_info
- Get internal settings of mbstring
mb_http_input
- Detect HTTP input character encoding
mb_http_output
- Set/Get HTTP output character encoding
mb_ord
- Get Unicode code point of character
mb_split
- Split multibyte string using regular expression
mb_str_split
- Given a multibyte string, return an array of its characters
mb_strcut
- Get part of string
mb_strimwidth
- Get truncated string with specified width
mb_stripos
- Finds position of first occurrence of a string within another, case insensitive
mb_stristr
- Finds first occurrence of a string within another, case insensitive
mb_strlen
- Get string length
mb_strpos
- Find position of first occurrence of string in a string
mb_strrchr
- Finds the last occurrence of a character in a string within another
mb_strrichr
- Finds the last occurrence of a character in a string within another, case insensitive
mb_strripos
- Finds position of last occurrence of a string within another, case insensitive
mb_strrpos
- Find position of last occurrence of a string in a string
mb_strstr
- Finds first occurrence of a string within another
mb_strtolower
- Make a string lowercase
mb_strtoupper
- Make a string uppercase
mb_strwidth
- Return width of string
mb_substr
- Get part of string
mb_substr_count
- Count the number of substring occurrences
Network
gethostbyaddr
- Get the Internet host name corresponding to a given IP address
gethostbyname
- Get the IPv4 address corresponding to a given Internet host name
gethostbynamel
- Get a list of IPv4 addresses corresponding to a given Internet host name
getmxrr
- Get MX records corresponding to a given Internet host name
getservbyname
- Get port number associated with an Internet service and protocol
getservbyport
- Get Internet service which corresponds to port and protocol
ip2long
- Converts a string containing an (IPv4) Internet Protocol dotted address into a long integer
long2ip
- Converts an long integer address into a string in (IPv4) Internet standard dotted format
Output Buffering
ob_start
- Turn on output buffering
Password Hashing
password_algos
- Get available password hashing algorithm IDs
password_get_info
- Returns information about the given hash
password_hash
- Creates a password hash
password_needs_rehash
- Checks if the given hash matches the given options
password_verify
- Verifies that a password matches a hash
Regular Expressions
preg_filter
- Perform a regular expression search and replace
preg_grep
- Return array entries that match the pattern
preg_match
- Perform a regular expression match
preg_match_all
- Perform a global regular expression match
preg_quote
- Quote regular expression characters
preg_replace
- Perform a regular expression search and replace
preg_replace_callback
- Perform a regular expression search and replace using a callback
preg_split
- Split string by a regular expression
String Manipulation
addcslashes
- Quote string with slashes in a C style
addslashes
- Quote string with slashes
bin2hex
- Convert binary data into hexadecimal representation
chr
- Generate a single-byte string from a number
chunk_split
- Split a string into smaller chunks
convert_cyr_string
- Convert from one Cyrillic character set to another
convert_uudecode
- Decode a uuencoded string
convert_uuencode
- Uuencode a string
count_chars
- Return information about characters used in a string
crc32
- Calculates the crc32 polynomial of a string
crypt
- One-way string hashing
explode
- Split a string by a string
get_html_translation_table
- Returns the translation table used by
htmlspecialchars
and
htmlentities
hebrev
- Convert logical Hebrew text to visual text
hebrevc
- Convert logical Hebrew text to visual text with newline conversion
html_entity_decode
- Convert HTML entities to their corresponding characters
htmlentities
- Convert all applicable characters to HTML entities
htmlspecialchars
- Convert special characters to HTML entities
htmlspecialchars_decode
- Convert special HTML entities back to characters
iconv
- Convert a string from one character encoding to another
implode
- Join array elements with a string
lcfirst
- Make a string's first character lowercase
levenshtein
- Calculate Levenshtein distance between two strings
localeconv
- Get numeric formatting information
ltrim
- Strip whitespace (or other characters) from the beginning of a string
md5
- Calculate the md5 hash of a string
md5_file
- Calculates the md5 hash of a given file
metaphone
- Calculate the metaphone key of a string
money_format
- Formats a number as a currency string
nl_langinfo
- Query language and locale information
nl2br
- Inserts HTML line breaks before all newlines in a string
number_format
- Format a number with grouped thousands
ord
- Convert the first byte of a string to a value between 0 and 255
parse_str
- Parses the string into variables
print
- Output a string
printf
- Output a formatted string
quoted_printable_decode
- Convert a quoted-printable string to an 8 bit string
quoted_printable_encode
- Convert a 8 bit string to a quoted-printable string
quotemeta
- Quote meta characters
rtrim
- Strip whitespace (or other characters) from the end of a string
sha1
- Calculate the sha1 hash of a string
sha1_file
- Calculate the sha1 hash of a file
similar_text
- Calculate the similarity between two strings
soundex
- Calculate the soundex key of a string
sprintf
- Return a formatted string
sscanf
- Parses input from a string according to a format
str_contains
- Determine if a string contains a given substring
str_ends_with
- Checks if a string ends with a given substring
str_getcsv
- Parse a CSV string into an array
str_ireplace
- Case-insensitive version of
str_replace
str_pad
- Pad a string to a certain length with another string
str_repeat
- Repeat a string
str_replace
- Replace all occurrences of the search string with the replacement string
str_rot13
- Perform the rot13 transform on a string
str_shuffle
- Randomly shuffles a string
str_split
- Convert a string to an array
str_starts_with
- Checks if a string starts with a given substring
str_word_count
- Return information about words used in a string
strcasecmp
- Binary safe case-insensitive string comparison
strcmp
- Binary safe string comparison
strcoll
- Locale based string comparison
strcspn
- Find length of initial segment not matching mask
strip_tags
- Strip HTML and PHP tags from a string
stripcslashes
- Un-quote string quoted with
addcslashes
stripos
- Find the position of the first occurrence of a case-insensitive substring in a string
stripslashes
- Un-quotes a quoted string
stristr
- Case-insensitive
strstr
strlen
- Get string length
strnatcasecmp
- Case insensitive string comparisons using a "natural order" algorithm
strnatcmp
- String comparisons using a "natural order" algorithm
strncasecmp
- Binary safe case-insensitive string comparison of the first n characters
strncmp
- Binary safe string comparison of the first n characters
strpbrk
- Search a string for any of a set of characters
strpos
- Find the position of the first occurrence of a substring in a string
strrchr
- Find the last occurrence of a character in a string
strrev
- Reverse a string
strripos
- Find the position of the last occurrence of a case-insensitive substring in a string
strrpos
- Find the position of the last occurrence of a substring in a string
strspn
- Finds the length of the initial segment of a string consisting entirely of characters contained within a given mask
strstr
- Find the first occurrence of a string
strtok
- Tokenize string
strtolower
- Make a string lowercase
strtoupper
- Make a string uppercase
strtr
- Translate characters or replace substrings
strval
- Get string value of a variable
substr
- Return part of a string
substr_compare
- Binary safe comparison of two strings from an offset, up to length characters
substr_count
- Count the number of substring occurrences
substr_replace
- Replace text within a portion of a string
trim
- Strip whitespace (or other characters) from the beginning and end of a string
ucfirst
- Make a string's first character uppercase
ucwords
- Uppercase the first character of each word in a string
utf8_decode
- Converts a string from UTF-8 to ISO-8859-1, replacing invalid or unrepresentable characters
utf8_encode
- Converts a string from ISO-8859-1 to UTF-8
vprintf
- Output a formatted string
vsprintf
- Return a formatted string
wordwrap
- Wraps a string to a given number of characters
Urls
base64_decode
- Decodes data encoded with MIME base64
base64_encode
- Encodes data with MIME base64
get_meta_tags
- Extracts all meta tag content attributes from a file and returns an array
http_build_query
- Generate URL-encoded query string
parse_url
- Parse a URL and return its components
rawurldecode
- Decode URL-encoded strings
rawurlencode
- URL-encode according to RFC 3986
urldecode
- Decodes URL-encoded string
urlencode
- URL-encodes string
Search Functions
PHP Documentation
Function Reference
Online tool Categories
Arrays
BCMath
Calendar
Cryptography and Hashing
Custom tools
Date and Time
Filesystem
General
iconv
Language and Character Encoding
Math
Multibyte String
Network
Output Buffering
Password Hashing
Regular Expressions
String Manipulation
Urls
Last used PHP functions
sandbox
(2 seconds ago)
http_build_query
(14 seconds ago)
unserialize
(26 seconds ago)
password_hash
(44 seconds ago)
serialize
(58 seconds ago)
Most used PHP functions
sandbox
(140261895)
hash_pbkdf2
(505092)
preg_replace
(225609)
password_hash
(209632)
unserialize
(188529)