Summary of PHP function accumulation

Math function:
10 more commonly used standard red.
abs-Absolute Value
acos-Anti-cosine
acosh-Inverse hyperbolic cosine
asin-anyway Chord
asinh-Inverse hyperbolic sine
atan2-two-parameter tangent
atan-anyway cut
atanh-Inverse hyperbolic tangent
Base_convert-converts numbers between arbitrary systems
bindec-binary conversion to decimal
Ceil-into one method to take the whole
cos-cosine
cosh-Hyperbolic cosine
decbin-Decimal conversion to Binary
dechex-decimal conversion to hexadecimal
decoct-Decimal conversion to octal
deg2rad-converts an angle to radians
Exp-calculates the index of E
Expm1-returns exp (number)-1, even when the value of number is close to 0 to calculate the exact result
Floor-the method of rounding out
Fmod-to return the floating-point number remainder of division
getrandmax-display the maximum possible value of random number
hexdec-16 Convert to Decimal
Hypot-calculates the hypotenuse length of a corner triangle
Is_finite-judge whether it is a finite value
Is_infinite-Determine whether it is an infinite value
is_nan-judge whether it is a legal value
lcg_value-Combination Linear congruence generator
log10-with a 10-base logarithm
log1p-returns log (1 + number), even when the value of number is close to 0 to calculate the exact result
log-Natural logarithm
max-Find the maximum value
min-Find the Minimum value
mt_getrandmax-display the maximum possible value of random numbers
mt_rand-to generate better random numbers
Mt_srand-to sow a better random number generator seed
octdec-octal conversion to decimal
pi-Get pi Value
pow-exponential expression
Rad2deg-converts the number of radians to the corresponding number of angles
Rand-produces a random integer
round-the floating-point numbers
sin-sine
sinh-hyperbolic sine
sqrt-Square Root
Seed of random number generator under srand-sowing
tan-Tangent
tanh-Hyperbolic tangent
String functions:
The more you have, at least 20. More commonly used standard red.
addcslashes-use backslashes to escape characters in a string in C language style
addslashes-use backslashes to refer to strings
bin2hex-converts binary data to hexadecimal representations
Alias of Chop-rtrim
chr-returns the specified character
chunk_split-splits a string into small chunks
Convert_cyr_string-converts a character from one Cyrillic character to another
Convert_uudecode-decodes a uuencode encoded string
Convert_uuencode-uses Uuencode to encode a string
count_chars-information that returns the character used for the string
crc32-computes a crc32 polynomial of a string
crypt-One-way string hash
echo-output one or more strings
explode-use a string to split another string
Fprintf-writes the formatted string to the stream
get_html_translation_table-returns the conversion table after using Htmlspecialchars and htmlentities
hebrev-converts logical Order Hebrew (logical-hebrew) to Visual Order Hebrew (visual-hebrew)
hebrevc-converts logical Order Hebrew (logical-hebrew) to Visual Order Hebrew (visual-hebrew), and converts line breaks
Html_entity_decode-convert all HTML entities to their applicable characters
Htmlentities-convert all applicable characters to HTML entities
Htmlspecialchars_decode-convert Special HTML entities back to characters
Htmlspecialchars-convert special characters to HTML entities
Implode-join array elements with a string
join-alias implode This article links http://www.cxybl.com/html/wlbc/Php/20130729/39381.html