PHP Benchmarks

Benchmark Group: addslashes

• 28 hist addslashes1: addslashes() vs. addcslashes()
• 6 hist addslashes2: addslashes() vs. mysql_escape_string()

Benchmark Group: array

• 5 hist array1: integer vs. string keys
• 2 hist array2: arrays vs. variables
• 11 hist array3: array_unique() vs. !isset() (integers)
• 11 hist array4: array_push() vs. [] =
• 4 hist array5: list () vs. [0]
• 4 hist array6: set duplicates vs. !isset()
• 2 hist array7: set unique vs. !isset()
• 9 hist array8: array_diff() vs. ==
• 6 hist array9: set immediately or later
• 4 hist array10: in_array() vs. key
• 8 hist array11: array_keys(array_flip()) vs. array_unique()

Benchmark Group: array_map

• 14 hist array_map1: array_map() vs. foreach
• 5 hist array_map2: array_map() vs. array_walk()
• 23 hist array_map3: array_walk() vs. array_walk_recursive()

Benchmark Group: array_merge

• 2 hist array_merge1: array_merge() vs. + (string keys)
• 2 hist array_merge2: array_merge() vs. for (int keys)

Benchmark Group: cast

• 5 hist cast1: (int) vs. intval()
• 5 hist cast2: (int) vs. settype()
• 8 hist cast3: (bool) vs. !empty()
• 2 hist cast4: (string) vs. interpolate
• 2 hist cast5: (string) vs. concat
• 2 hist cast6: concat (string) vs. not
• 4 hist cast7: (array) vs. array()
• 1 hist cast8: (array) vs. array() w/is_array()

Benchmark Group: chr

• 2 hist chr1: chr() v. literal
• 4 hist chr2: chr() v. pack()
• 7 hist chr3: ord() v. unpack() (str keys)
• 10 hist chr4: ord() v. unpack() (int keys)
• 1 hist chr5: pack() v. sprintf()

Benchmark Group: classes

• 2 hist classes1: single class vs. associative arrays
• 9 hist classes2: many classes vs. associative arrays
• 6 hist classes3: passing classes vs. arrays
• 3 hist classes4: function vs. class method

Benchmark Group: constants

• constants1: define constants vs. variables
• 5 hist constants2: using constants vs. variables
• 1 hist constants3: defined() vs. isset()
• 1 hist constants4: redefine constant

Benchmark Group: create_function

• 5 hist create_function1: create_function() vs. eval()
• 2 hist create_function2: many create_function() vs. eval()
• 3 hist create_function3: create_function() vs. func callback
• 2 hist create_function4: create_function() vs. closure inside loop
• 1 hist create_function5: create_function() vs. closure outside loop

Benchmark Group: date

• 3 hist date1: date() vs. strftime()
• 26 hist date2: time() vs. strtotime('now')
• 1 hist date3: time() vs. microtime(true)
• 4 hist date4: strftime() vs. localtime()
• 13 hist date5: strtotime('today') vs. mktime()

Benchmark Group: dir

• 19 hist dir1: glob() vs. glob no sort files only
• 57 hist dir2: glob(no_sort) vs scandir() files only
• 8 hist dir3: glob(no_sort) vs opendir/readdir files only
• 10 hist dir4: glob(no_sort) vs DirectoryIterator()
• 6 hist dir5: glob(no_sort) vs DirectoryIterator()

Benchmark Group: echo

• 2 hist echo1: commas vs. concat on long strings
• 2 hist echo2: commas vs. concat on short strings
• 4 hist echo3: commas vs. interpolation on long strings
• 2 hist echo4: commas vs. interpolation on short strings
• 2 hist echo5: echo vs. ?>...<?php (static)
• 3 hist echo6: echo vs. ?>...<?php (dynamic)
• 2 hist echo7: commas vs. sprintf() on long strings
• echo8: commas vs. sprintf() on short strings

Benchmark Group: equal

• 5 hist equal1: == vs. === (fail, different types)
• 2 hist equal2: == vs. === (different types with cast)
• 4 hist equal3: == vs. === (fail, same types)
• 6 hist equal4: == vs. === (pass, same types)
• 5 hist equal5: === vs. strcmp() (fail)
• 2 hist equal6: === vs. strcmp() (pass)
• 2 hist equal7: === null vs. is_null()
• 5 hist equal8: === null vs. == null

Benchmark Group: errors

• 6 hist errors1: generating notices vs. not
• 4 hist errors2: error_reporting(0) vs. @
• 4 hist errors3: Exceptions vs. return code (fail)
• 4 hist errors4: Exceptions vs. return code (pass)
• 4 hist errors5: ignoring notices vs. not
• 4 hist errors6: @ (no error)

Benchmark Group: exec

• 2 hist exec1: exec() vs. shell_exec()
• 3 hist exec2: system() vs. shell_exec()

Benchmark Group: file

• 5 hist file1: file() vs. file_get_contents() (str)
• 5 hist file2: file() vs. file_get_contents() (array)
• 3 hist file3: file() vs. fgets() (array)

Benchmark Group: foreach

• 2 hist foreach1: foreach reference reading
• 6 hist foreach2: foreach reference writing
• 5 hist foreach3: foreach $k => $dummy vs. array_keys()
• 3 hist foreach4: foreach vs. while (list)
• 4 hist foreach5: foreach/range() vs. for
• 8 hist foreach6: foreach writing ref vs. key
• 8 hist foreach7: foreach key vs. no key
• 3 hist foreach8: foreach vs. while (next)
• 3 hist foreach9: foreach (fcall) vs. foreach ($temp)
• 7 hist foreach10: foreach vs. for

Benchmark Group: func

• 3 hist func1: fcall vs. not (non-trivial)
• 3 hist func2: fcall vs. call_user_func()
• 6 hist func3: fcall vs. call_user_func_array()
• 4 hist func4: fcall vs. callback
• 1 hist func5: callback vs. if
• 3 hist func6: callback vs. wrapped
• 3 hist func7: callback vs. call_user_func()
• 4 hist func8: callback vs. wrapped

Benchmark Group: global

• 1 hist global1: global vs. $GLOBALS
• 4 hist global2: global vs. local
• 1 hist global3: global vs. static

Benchmark Group: hash

• 11 hist hash1: md5() vs. sha1()
• 5 hist hash2: sha1() short vs. long

Benchmark Group: if

• 3 hist if1: else if vs. elseif
• 3 hist if2: if vs. ternary
• 4 hist if3: nested ifs
• 5 hist if4: if vs. switch
• 6 hist if5: if vs. ternary large string

Benchmark Group: ifor

• 14 hist ifor1: array_keys(array_flip()) vs. array_unique()

Benchmark Group: include

• 1 hist include1: include vs. require
• 4 hist include2: include vs. eval()
• 5 hist include3: include vs. include_once
• 5 hist include4: file_exists() vs. require
• 4 hist include5: include_once vs. function_exists()

Benchmark Group: index

• index1 (MySQL): performance penalty of one index

Benchmark Group: is

• 3 hist is1: is_float vs. Float Casting
• 2 hist is2: is_int vs. Casting
• 3 hist is3: is_string vs. Casting

Benchmark Group: keycreation

• 3 hist keycreation: strtr() vs. str_replace() on long strings

Benchmark Group: last

• 1 hist last1: Last Character

Benchmark Group: math

• 2 hist math1: float vs. integer addition
• 4 hist math2: float vs. integer multiplication
• 3 hist math3: multiply vs. add
• 3 hist math4: min()/max() vs. if
• 3 hist math5: abs() vs. ternary

Benchmark Group: ob_start

• 4 hist ob_start1: ob_start()/ob_get_contents() vs. concat
• 4 hist ob_start2: ob_start() vs. not (no output)

Benchmark Group: preg

• 7 hist preg1: preg_replace() vs. str_replace()
• 4 hist preg2: preg_replace() vs. stri_replace()
• 5 hist preg3: preg_match() vs. strpos() (simple)
• 8 hist preg4: preg_match() vs. strpos() (complex)
• 5 hist preg5: preg_split() vs. explode()/str_replace()
• 4 hist preg6: preg_replace() vs. preg_replace_callback()

Benchmark Group: rand

• 2 hist rand1: rand() vs. mt_rand()
• 5 hist rand2: rand() more vs. less
• 2 hist rand3: rand() vs. array_rand() (odd keys)
• 4 hist rand4: rand() vs. array_rand() (seq keys)

Benchmark Group: recurse

• 5 hist recurse1: recurison vs. not (trivial)
• 5 hist recurse2: tail recurison

Benchmark Group: socket

• 33 hist socket1: stream_socket_client() vs. fsockopen()
• 7 hist socket2: sockets blocking vs. not

Benchmark Group: strpios

• 5 hist strpios1: stripos() vs. strtolower(substr())
• 7 hist strpios2: stripos() vs. strtolower(strpos())

Benchmark Group: strpos

• 16 hist strpos1: strstr() vs. strpos()
• 6 hist strpos2: strncmp() vs. strpos() (long)
• 24 hist strpos3: strncmp() vs. strpos() (short)
• 70 hist strpos4: substr() vs. strpos() (long)
• 4 hist strpos5: substr() vs. strpos() (short)
• 7 hist strpos6: strpos()/strtolower() vs. stripos()
• 10 hist strpos7: substr_compare vs strpos

Benchmark Group: strtr

• 1 hist strtr1: strtr() vs. str_replace() on long strings
• 2 hist strtr2: strtr() vs. str_replace() on short strings
• 5 hist strtr3: str_ireplace vs. strtolower + str_replace
• 1 hist strtr4: strtr() vs. str_replace()/array_keys() on long strings

Benchmark Group: substr

• 1 hist substr1: substr($var, 5, 1) vs. {5}
• 2 hist substr2: substr() negative vs. strlen()
• 5 hist substr3: substr() on short vs. long strings
• 1 hist substr4: substr($var, 5, 1) vs. isset && {5}
• 5 hist substr5: substr($var, 25, 1) vs. isset && {25}

Benchmark Group: urlencode

• 2 hist urlencode1: urlencode() vs. rawurlencode()
• 5 hist urlencode2: urlencode() vs. base64_encode()
• 2 hist urlencode3: urlencode() vs. urldecode()