<?php
namespace Etc;
/**
* Determines whether any element of `$array` satisfies `$predicate`
*
* @param array $array The array
* @param callable $predicate [optional] The predicate, accepting parameters `$value`, `$key`, returning `boolean`
* @return boolean `TRUE` if any element satisfies `$predicate`, `FALSE` otherwise
*/
function array_any(array $array, callable $predicate = null)
{
$predicate = $predicate? : function ($value) {
return !empty($value);
};
foreach ($array as $key => $value)
{
if ((boolean) $predicate($value, $key))
{
return true;
}
}
return false;
}
/**
* Determines whether all elements of `$array` satisfy `$predicate`
*
* @param array $array The array
* @param callable $predicate [optional] The predicate, accepting parameters `$value`, `$key`, returning `boolean`
* @return boolean `TRUE` if all elements satisfy `$predicate`, `FALSE` otherwise
*/
function array_all(array $array, callable $predicate = null)
{
$predicate = $predicate? : function ($value) {
return !empty($value);
};
foreach ($array as $key => $value)
{
if ((boolean) $predicate($value, $key))
{
continue;
}
return false;
}
return true;
}
/**
* Returns the first element value of `$array` that satisfies `$predicate`
*
* @param array $array
* @param callable $predicate [optional] The predicate, accepting parameters `$value`, `$key`, returning `boolean`
* @param mixed $default [optional] The value to return if no elements satisfy `$predicate`
* @return mixed The element value, `$default` otherwise
*/
function array_first(array $array, callable $predicate = null, $default = null)
{
$predicate = $predicate? : function ($value) {
return !empty($value);
};
foreach ($array as $key => $value)
{
if ((boolean) $predicate($value, $key))
{
return $value;
}
}
return $default;
}
/**
* Returns the first element key of `$array` that satisfies `$predicate`
*
* @param array $array The array
* @param callable $predicate [optional] The predicate, accepting parameters `$value`, `$key`, returning `boolean`
* @return mixed The element key, `NULL` otherwise
*/
function array_first_key(array $array, callable $predicate = null)
{
$predicate = $predicate? : function ($value) {
return !empty($value);
};
foreach ($array as $key => $value)
{
if ((boolean) $predicate($value, $key))
{
return $key;
}
}
return null;
}
/**
* Returns the last element value of `$array` that satisfies `$predicate`
*
* @param array $array The array
* @param callable $predicate [optional] The predicate, accepting parameters `$value`, `$key`, returning `boolean`
* @param mixed $default [optional] The value to return if no elements satisfy `$predicate`
* @return mixed The element value, `$default` otherwise
*/
function array_last(array $array, callable $predicate = null, $default = null)
{
$predicate = $predicate? : function ($value) {
return !empty($value);
};
foreach (array_reverse(array_keys($array)) as $key)
{
$value = $array[$key];
if ((boolean) $predicate($value, $key))
{
return $value;
}
}
return $default;
}
/**
* Returns the last element key of $array` that satisfies `$predicate`
*
* @param array $array The array
* @param callable $predicate [optional] The predicate, accepting parameters `$value`, `$key`, returning `boolean`
* @return mixed The element key, `NULL` otherwise
*/
function array_last_key(array $array, callable $predicate = null)
{
$predicate = $predicate? : function ($value) {
return !empty($value);
};
foreach (array_reverse(array_keys($array)) as $key)
{
$value = $array[$key];
if ((boolean) $predicate($value, $key))
{
return $key;
}
}
return null;
}
var_dump(array_last_key([null, null, 'a', null]));
- Output for git.master, git.master_jit, rfc.property-hooks
- int(2)
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