PHP's array_uintersect_uassoc in TypeScript

How to use

Install via yarn add locutus and import: import { array_uintersect_uassoc } from 'locutus/php/array/array_uintersect_uassoc'.

Or with CommonJS: const { array_uintersect_uassoc } = require('locutus/php/array/array_uintersect_uassoc')

Use a bundler that supports tree-shaking so you only ship the functions you actually use. Vite, webpack, Rollup, and Parcel all handle this. For server-side use this is less of a concern.

Examples

These examples are extracted from test cases that automatically verify our functions against their native counterparts.

#	code	expected result
1	var $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'} var $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'} array_uintersect_uassoc($array1, $array2, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;}, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;})	{a: 'green', b: 'brown'}

PHP arrays and TypeScript/JavaScript

Please note that Locutus uses TypeScript/JavaScript objects as substitutes for PHP arrays, they are the closest we can get to this hashtable-like data structure without rolling our own. While many TypeScript/JavaScript implementations preserve the order of object properties, the ECMAScript Language Specification explicitly states that:

The mechanics and order of enumerating the properties is not specified.

In practice most engines preserve insertion order, but if your code depends on key ordering across platforms, keep this caveat in mind.

To influence how Locutus treats objects as arrays, you can check out the locutus.objectsAsArrays setting.

Dependencies

This function uses the following Locutus functions:

• _callbackResolver (php/_helpers)
• _phpTypes (php/_helpers)

Here's what our current TypeScript equivalent to PHP's array_uintersect_uassoc looks like.

TSTypeScript JSJavaScript TSStandalone TS JSStandalone JS

Copy code

import { resolveNumericComparator } from '../_helpers/_callbackResolver.ts'
import {
  entriesOfPhpAssoc,
  isPhpCallableDescriptor,
  type PhpAssoc,
  type PhpComparatorDescriptor,
  type PhpKeyComparatorDescriptor,
  toPhpArrayObject,
} from '../_helpers/_phpTypes.ts'

type IntersectArray<T> = PhpAssoc<T> | T[]

export function array_uintersect_uassoc<T>(
  arr1: PhpAssoc<T>,
  ...arraysAndComparators: [
    arr2: IntersectArray<T>,
    ...rest: Array<IntersectArray<T>>,
    valueCallback: PhpComparatorDescriptor<T>,
    keyCallback: PhpKeyComparatorDescriptor,
  ]
): PhpAssoc<T> {
  //  discuss at: https://locutus.io/php/array_uintersect_uassoc/
  // original by: Brett Zamir (https://brett-zamir.me)
  //   example 1: var $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'}
  //   example 1: var $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'}
  //   example 1: array_uintersect_uassoc($array1, $array2, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;}, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;})
  //   returns 1: {a: 'green', b: 'brown'}

  const retArr: PhpAssoc<T> = {}
  const keyCallback = arraysAndComparators.at(-1)
  const valueCallback = arraysAndComparators.at(-2)
  if (
    typeof keyCallback === 'undefined' ||
    typeof valueCallback === 'undefined' ||
    !isPhpCallableDescriptor<[string, string]>(keyCallback) ||
    !isPhpCallableDescriptor<[T, T]>(valueCallback)
  ) {
    throw new Error('array_uintersect_uassoc(): Invalid callback')
  }
  const arrays = arraysAndComparators.slice(0, -2).map((value) => toPhpArrayObject<T>(value))
  const lastArrayIndex = arrays.length - 1
  const keyComparator = resolveNumericComparator<string, string>(
    keyCallback,
    'array_uintersect_uassoc(): Invalid key callback',
  )
  const valueComparator = resolveNumericComparator<T, T>(
    valueCallback,
    'array_uintersect_uassoc(): Invalid value callback',
  )

  arr1keys: for (const [k1, arr1Value] of entriesOfPhpAssoc(arr1)) {
    arrs: for (const [i, arr] of arrays.entries()) {
      for (const [k, arrValue] of entriesOfPhpAssoc(arr)) {
        if (valueComparator(arrValue, arr1Value) === 0 && keyComparator(k, k1) === 0) {
          if (i === lastArrayIndex) {
            retArr[k1] = arr1Value
          }
          // If the innermost loop always leads at least once to an equal value,
          // continue the loop until done
          continue arrs
        }
      }
      // If it reaches here, it wasn't found in at least one array, so try next value
      continue arr1keys
    }
  }

  return retArr
}

import { resolveNumericComparator } from '../_helpers/_callbackResolver.ts'
import { entriesOfPhpAssoc, isPhpCallableDescriptor, toPhpArrayObject } from '../_helpers/_phpTypes.ts'

export function array_uintersect_uassoc(arr1, ...arraysAndComparators) {
  //  discuss at: https://locutus.io/php/array_uintersect_uassoc/
  // original by: Brett Zamir (https://brett-zamir.me)
  //   example 1: var $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'}
  //   example 1: var $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'}
  //   example 1: array_uintersect_uassoc($array1, $array2, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;}, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;})
  //   returns 1: {a: 'green', b: 'brown'}

  const retArr = {}
  const keyCallback = arraysAndComparators.at(-1)
  const valueCallback = arraysAndComparators.at(-2)
  if (
    typeof keyCallback === 'undefined' ||
    typeof valueCallback === 'undefined' ||
    !isPhpCallableDescriptor(keyCallback) ||
    !isPhpCallableDescriptor(valueCallback)
  ) {
    throw new Error('array_uintersect_uassoc(): Invalid callback')
  }
  const arrays = arraysAndComparators.slice(0, -2).map((value) => toPhpArrayObject(value))
  const lastArrayIndex = arrays.length - 1
  const keyComparator = resolveNumericComparator(keyCallback, 'array_uintersect_uassoc(): Invalid key callback')
  const valueComparator = resolveNumericComparator(valueCallback, 'array_uintersect_uassoc(): Invalid value callback')

  arr1keys: for (const [k1, arr1Value] of entriesOfPhpAssoc(arr1)) {
    arrs: for (const [i, arr] of arrays.entries()) {
      for (const [k, arrValue] of entriesOfPhpAssoc(arr)) {
        if (valueComparator(arrValue, arr1Value) === 0 && keyComparator(k, k1) === 0) {
          if (i === lastArrayIndex) {
            retArr[k1] = arr1Value
          }
          // If the innermost loop always leads at least once to an equal value,
          // continue the loop until done
          continue arrs
        }
      }
      // If it reaches here, it wasn't found in at least one array, so try next value
      continue arr1keys
    }
  }

  return retArr
}

// php/_helpers/_phpTypes (Locutus helper dependency)
type PhpNullish = null | undefined

type PhpInput = {} | PhpNullish

type NumericLike = number | bigint | string

type PhpList<T = PhpInput> = T[]

type PhpAssoc<T = PhpInput> = { [key: string]: T }

type PhpArrayLike<T = PhpInput> = PhpList<T> | PhpAssoc<T>

const entriesOfPhpAssoc = <T>(value: PhpAssoc<T>): Array<[string, T]> => {
  return Object.entries(value)
}

type PhpCallableArgs = PhpInput[]

type PhpCallable<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = PhpInput> = (
  ...args: TArgs
) => TResult

type PhpCallableScope = PhpInput

type PhpCallableTuple<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = PhpInput> = readonly [
  PhpCallableScope,
  string | PhpCallable<TArgs, TResult>,
]

type PhpCallableDescriptor<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = PhpInput> =
  | string
  | PhpCallable<TArgs, TResult>
  | PhpCallableTuple<TArgs, TResult>

type PhpComparatorDescriptor<T> = PhpCallableDescriptor<[T, T], NumericLike>

type PhpKeyComparatorDescriptor = PhpCallableDescriptor<[string, string], NumericLike>

function isObjectLike(value: PhpInput): value is PhpArrayLike<PhpInput> {
  return typeof value === 'object' && value !== null
}

function isPhpCallable<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = PhpInput>(
  value: PhpInput,
): value is PhpCallable<TArgs, TResult> {
  return typeof value === 'function'
}

function isPhpCallableDescriptor<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = PhpInput>(
  value: PhpInput,
): value is PhpCallableDescriptor<TArgs, TResult> {
  if (typeof value === 'string') {
    return true
  }

  if (isPhpCallable<TArgs, TResult>(value)) {
    return true
  }

  if (!Array.isArray(value) || value.length < 2) {
    return false
  }

  const callableDescriptor = value[1]
  return typeof callableDescriptor === 'string' || isPhpCallable<TArgs, TResult>(callableDescriptor)
}

function isPhpArrayObject<T = PhpInput>(value: PhpInput): value is PhpAssoc<T> {
  return isObjectLike(value)
}

function toPhpArrayObject<T = PhpInput>(value: PhpInput): PhpAssoc<T> {
  if (isPhpArrayObject<T>(value)) {
    return value
  }

  return {}
}

// php/_helpers/_phpRuntimeState (Locutus helper dependency)
interface LocutusRuntimeContainer {
  php?: PhpAssoc<PhpInput>
}

interface PhpGlobalProcessLike {
  env?: PhpAssoc<string | undefined>
}

interface PhpGlobalBufferLike {
  from?: (...args: PhpInput[]) => PhpInput
}

interface PhpGlobalKnownEntryMap {
  process: PhpGlobalProcessLike
  Buffer: PhpGlobalBufferLike
}

type GlobalWithLocutus = {
  $locutus?: LocutusRuntimeContainer
  [key: string]: PhpInput
}

const globalContext: GlobalWithLocutus =
  typeof window === 'object' && window !== null ? window : typeof global === 'object' && global !== null ? global : {}

function getPhpGlobalEntry<TKey extends keyof PhpGlobalKnownEntryMap>(
  key: TKey,
): PhpGlobalKnownEntryMap[TKey] | undefined

function getPhpGlobalEntry(key: string): PhpInput | undefined

function getPhpGlobalEntry(key: string): PhpInput | undefined {
  const value = globalContext[key]
  return typeof value === 'undefined' ? undefined : value
}

function getPhpObjectEntry(value: PhpInput, key: string): PhpInput | undefined {
  if ((typeof value !== 'object' && typeof value !== 'function') || value === null) {
    return undefined
  }

  let current: object | null = value
  while (current) {
    const descriptor = Object.getOwnPropertyDescriptor(current, key)
    if (descriptor) {
      if (typeof descriptor.get === 'function') {
        const getterValue = descriptor.get.call(value)
        return typeof getterValue === 'undefined' ? undefined : getterValue
      }
      const directValue = descriptor.value
      return typeof directValue === 'undefined' ? undefined : directValue
    }
    current = Object.getPrototypeOf(current)
  }

  return undefined
}

// php/_helpers/_callbackResolver (Locutus helper dependency)
type CallbackValue = PhpInput

interface CallbackResolverOptions {
  invalidMessage: string
  missingScopeMessage?: (scopeName: string) => string
}

interface ResolvedCallback<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = CallbackValue> {
  fn: PhpCallable<TArgs, TResult>
  scope: CallbackValue
}

function resolvePhpCallable<TArgs extends PhpCallableArgs = PhpCallableArgs, TResult = CallbackValue>(
  callback: PhpCallableDescriptor<TArgs, TResult>,
  options: CallbackResolverOptions,
): ResolvedCallback<TArgs, TResult> {
  if (isPhpCallable<TArgs, TResult>(callback)) {
    return { fn: callback, scope: null }
  }

  if (typeof callback === 'string') {
    const candidate = getPhpGlobalEntry(callback)
    if (isPhpCallable<TArgs, TResult>(candidate)) {
      return { fn: candidate, scope: null }
    }
    throw new Error(options.invalidMessage)
  }

  if (Array.isArray(callback) && callback.length >= 2) {
    const scopeDescriptor = callback[0]
    const callableDescriptor = callback[1]

    let scope: CallbackValue
    if (typeof scopeDescriptor === 'string') {
      scope = getPhpGlobalEntry(scopeDescriptor)
      if (typeof scope === 'undefined' && options.missingScopeMessage) {
        throw new Error(options.missingScopeMessage(scopeDescriptor))
      }
    } else {
      scope = scopeDescriptor
    }

    if (isPhpCallable<TArgs, TResult>(callableDescriptor)) {
      return { fn: callableDescriptor, scope }
    }

    if (typeof callableDescriptor === 'string' && (isObjectLike(scope) || typeof scope === 'function')) {
      const candidate = getPhpObjectEntry(scope, callableDescriptor)
      if (isPhpCallable<TArgs, TResult>(candidate)) {
        return { fn: candidate, scope }
      }
    }
  }

  throw new Error(options.invalidMessage)
}

function resolveNumericComparator<
  TLeft extends CallbackValue = CallbackValue,
  TRight extends CallbackValue = CallbackValue,
>(
  callback: PhpCallableDescriptor<[TLeft, TRight], NumericLike>,
  invalidMessage: string,
): (left: TLeft, right: TRight) => number {
  const resolved = resolvePhpCallable<[TLeft, TRight], NumericLike>(callback, { invalidMessage })

  return (left: TLeft, right: TRight): number => Number(resolved.fn.apply(resolved.scope, [left, right]))
}

// php/array/array_uintersect_uassoc (target function module)
type IntersectArray<T> = PhpAssoc<T> | T[]

function array_uintersect_uassoc<T>(
  arr1: PhpAssoc<T>,
  ...arraysAndComparators: [
    arr2: IntersectArray<T>,
    ...rest: Array<IntersectArray<T>>,
    valueCallback: PhpComparatorDescriptor<T>,
    keyCallback: PhpKeyComparatorDescriptor,
  ]
): PhpAssoc<T> {
  //  discuss at: https://locutus.io/php/array_uintersect_uassoc/
  // original by: Brett Zamir (https://brett-zamir.me)
  //   example 1: var $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'}
  //   example 1: var $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'}
  //   example 1: array_uintersect_uassoc($array1, $array2, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;}, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;})
  //   returns 1: {a: 'green', b: 'brown'}

  const retArr: PhpAssoc<T> = {}
  const keyCallback = arraysAndComparators.at(-1)
  const valueCallback = arraysAndComparators.at(-2)
  if (
    typeof keyCallback === 'undefined' ||
    typeof valueCallback === 'undefined' ||
    !isPhpCallableDescriptor<[string, string]>(keyCallback) ||
    !isPhpCallableDescriptor<[T, T]>(valueCallback)
  ) {
    throw new Error('array_uintersect_uassoc(): Invalid callback')
  }
  const arrays = arraysAndComparators.slice(0, -2).map((value) => toPhpArrayObject<T>(value))
  const lastArrayIndex = arrays.length - 1
  const keyComparator = resolveNumericComparator<string, string>(
    keyCallback,
    'array_uintersect_uassoc(): Invalid key callback',
  )
  const valueComparator = resolveNumericComparator<T, T>(
    valueCallback,
    'array_uintersect_uassoc(): Invalid value callback',
  )

  arr1keys: for (const [k1, arr1Value] of entriesOfPhpAssoc(arr1)) {
    arrs: for (const [i, arr] of arrays.entries()) {
      for (const [k, arrValue] of entriesOfPhpAssoc(arr)) {
        if (valueComparator(arrValue, arr1Value) === 0 && keyComparator(k, k1) === 0) {
          if (i === lastArrayIndex) {
            retArr[k1] = arr1Value
          }
          // If the innermost loop always leads at least once to an equal value,
          // continue the loop until done
          continue arrs
        }
      }
      // If it reaches here, it wasn't found in at least one array, so try next value
      continue arr1keys
    }
  }

  return retArr
}

// php/_helpers/_phpTypes (Locutus helper dependency)

function isObjectLike(value) {
  return typeof value === 'object' && value !== null
}

function isPhpCallable(value) {
  return typeof value === 'function'
}

function isPhpCallableDescriptor(value) {
  if (typeof value === 'string') {
    return true
  }

  if (isPhpCallable(value)) {
    return true
  }

  if (!Array.isArray(value) || value.length < 2) {
    return false
  }

  const callableDescriptor = value[1]
  return typeof callableDescriptor === 'string' || isPhpCallable(callableDescriptor)
}

function toPhpArrayObject(value) {
  if (isPhpArrayObject(value)) {
    return value
  }

  return {}
}

const isPhpArrayObject = isObjectLike

// php/_helpers/_phpRuntimeState (Locutus helper dependency)
const globalContext =
  typeof window === 'object' && window !== null ? window : typeof global === 'object' && global !== null ? global : {}

function getPhpGlobalEntry(key) {
  const value = globalContext[key]
  return typeof value === 'undefined' ? undefined : value
}

function getPhpObjectEntry(value, key) {
  if ((typeof value !== 'object' && typeof value !== 'function') || value === null) {
    return undefined
  }

  let current = value
  while (current) {
    const descriptor = Object.getOwnPropertyDescriptor(current, key)
    if (descriptor) {
      if (typeof descriptor.get === 'function') {
        const getterValue = descriptor.get.call(value)
        return typeof getterValue === 'undefined' ? undefined : getterValue
      }
      const directValue = descriptor.value
      return typeof directValue === 'undefined' ? undefined : directValue
    }
    current = Object.getPrototypeOf(current)
  }

  return undefined
}

// php/_helpers/_callbackResolver (Locutus helper dependency)
function resolvePhpCallable(callback, options) {
  if (isPhpCallable(callback)) {
    return { fn: callback, scope: null }
  }

  if (typeof callback === 'string') {
    const candidate = getPhpGlobalEntry(callback)
    if (isPhpCallable(candidate)) {
      return { fn: candidate, scope: null }
    }
    throw new Error(options.invalidMessage)
  }

  if (Array.isArray(callback) && callback.length >= 2) {
    const scopeDescriptor = callback[0]
    const callableDescriptor = callback[1]

    let scope
    if (typeof scopeDescriptor === 'string') {
      scope = getPhpGlobalEntry(scopeDescriptor)
      if (typeof scope === 'undefined' && options.missingScopeMessage) {
        throw new Error(options.missingScopeMessage(scopeDescriptor))
      }
    } else {
      scope = scopeDescriptor
    }

    if (isPhpCallable(callableDescriptor)) {
      return { fn: callableDescriptor, scope }
    }

    if (typeof callableDescriptor === 'string' && (isObjectLike(scope) || typeof scope === 'function')) {
      const candidate = getPhpObjectEntry(scope, callableDescriptor)
      if (isPhpCallable(candidate)) {
        return { fn: candidate, scope }
      }
    }
  }

  throw new Error(options.invalidMessage)
}

function resolveNumericComparator(callback, invalidMessage) {
  const resolved = resolvePhpCallable(callback, { invalidMessage })

  return (left, right) => Number(resolved.fn.apply(resolved.scope, [left, right]))
}

// php/array/array_uintersect_uassoc (target function module)
function array_uintersect_uassoc(arr1, ...arraysAndComparators) {
  //  discuss at: https://locutus.io/php/array_uintersect_uassoc/
  // original by: Brett Zamir (https://brett-zamir.me)
  //   example 1: var $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'}
  //   example 1: var $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'}
  //   example 1: array_uintersect_uassoc($array1, $array2, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;}, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 === string2) return 0; return -1;})
  //   returns 1: {a: 'green', b: 'brown'}

  const retArr = {}
  const keyCallback = arraysAndComparators.at(-1)
  const valueCallback = arraysAndComparators.at(-2)
  if (
    typeof keyCallback === 'undefined' ||
    typeof valueCallback === 'undefined' ||
    !isPhpCallableDescriptor(keyCallback) ||
    !isPhpCallableDescriptor(valueCallback)
  ) {
    throw new Error('array_uintersect_uassoc(): Invalid callback')
  }
  const arrays = arraysAndComparators.slice(0, -2).map((value) => toPhpArrayObject(value))
  const lastArrayIndex = arrays.length - 1
  const keyComparator = resolveNumericComparator(keyCallback, 'array_uintersect_uassoc(): Invalid key callback')
  const valueComparator = resolveNumericComparator(valueCallback, 'array_uintersect_uassoc(): Invalid value callback')

  arr1keys: for (const [k1, arr1Value] of Object.entries(arr1)) {
    arrs: for (const [i, arr] of arrays.entries()) {
      for (const [k, arrValue] of Object.entries(arr)) {
        if (valueComparator(arrValue, arr1Value) === 0 && keyComparator(k, k1) === 0) {
          if (i === lastArrayIndex) {
            retArr[k1] = arr1Value
          }
          // If the innermost loop always leads at least once to an equal value,
          // continue the loop until done
          continue arrs
        }
      }
      // If it reaches here, it wasn't found in at least one array, so try next value
      continue arr1keys
    }
  }

  return retArr
}

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