Foreach字符串替换有多种变体


Foreach string replacement with multiple variations

我正试图找出用多个排序规则替换字符串的最佳方法。

我有一个由用户插入的句子,我有一组该句子中所有拼写错误的单词及其潜在的更正。

$sentence = 'i want to recovary my vehical from the cabs';

我想显示以下内容:

  1. 我想从出租车上取回我的车
  2. 我想从出租车上取回我的车
  3. 我想从出租车上重新检查我的车

到目前为止的代码:

$element = array(
    "vehical" => array('vehicle'),
    "recovary" => array('recovery', 'recover', 'revary')
);
$sentence = 'i want to recovary my vehical from the cabs';
foreach($element as $i => $val){
    echo $i;    
}

编辑:扩展了另一个场景:

如果顶部数组中存在多个变体,会发生什么情况。

    "vehical" => array('vehicle', 'vehiclesy', 'whatever'),
    "recovary" => array('recovery', 'recover', 'revary')
  1. 我想从出租车上取回我的车
  2. 我想从出租车上取回我的车
  3. 我想从出租车里取回我的东西
  4. 我想从出租车上取回我的车
  5. 我想从出租车上取回我的车
  6. 我想从出租车上取回我的东西
  7. 我想从出租车上重新检查我的车
  8. 我想从出租车上重新检查我的车辆
  9. 我想从出租车上报复我的一切

您需要创建替换数据的所有唯一组合。对于这些组合中的每一个,您都可以进行替换。这是一种方法:

<?php
function createCombinations(array $input)
{
    $head = array_shift($input);
    $tail = count($input) > 1 ? createCombinations($input) : array_shift($input);
    $combinations = [];
    foreach ($head as $left) {
        foreach ($tail as $right) {
            $combinations[] = array_merge([$left], (array) $right);
        }
    }
    return $combinations;
}
$element = [
    'vehical'  => ['vehicle', 'car'],
    'recovary' => ['recovery', 'recover', 'revary'],
    'cubs'     => ['cabs'],
];
$sentence = 'i want to recovary my vehical from the cubs';
$from = array_keys($element);
foreach (createCombinations($element) as $to) {
    echo str_replace($from, $to, $sentence), "'n";
}
# => i want to recovery my vehicle from the cabs
# => i want to recover my vehicle from the cabs
# => i want to revary my vehicle from the cabs
# => i want to recovery my car from the cabs
# => i want to recover my car from the cabs
# => i want to revary my car from the cabs

演示:https://ideone.com/LERb9X

尝试使用str_replace(),如

$str='';
foreach($element as $search => $combinations){
     foreach($combinations as $comb){
        $str.=str_replace($search,$comb,$sentence)."'n";
     }
}
echo $str;

演示

尝试制作函数并创建一个所有可能组合的数组,然后使用结果数组(如)替换它

$element = array(
    "vehical" => array('vehicle', 'vehiclesy', 'whatever'),
    "recovary" => array('recovery', 'recover', 'revary')
);
$sentence = 'i want to recovary my vehical from the cabs';
// change the array using loop for replacement
function makeCombinations($combinations, $values)
{
    $res = array();
    $i=0;
    foreach($combinations as $comb) {
        foreach($values as $value) {
            $res[$i] = is_array($comb) ? $comb : array($comb);
            $res[$i][] = $value;
            $i++;
        }
    }
    return $res;
}   
$searchArr = array();
foreach($element as $search => $values) {
    $searchArr[] = $search;
    $combinations = isset($combinations) ? makeCombinations($combinations, $values) : $values;
}
// finally replace the strings
foreach($combinations as $combination){
    echo str_replace($searchArr, $combination, $sentence),"'n";
}

演示

使用秒(foreach和str_replace())尝试以下解决方案:

//the items with replacement values.
$items = array(
    "vehical" => array('vehicle', 'vehiclesy', 'whatever'),
    "recovary" => array('recovery', 'recover', 'revary'),
    "cabs" => array('cups', 'cips'), 
    "from" => array(1, 2)
);
//init the initial sentence and the array with all solutions.
$sentence = 'i want to recovary my vehical from the cabs';
$solution = [];
//run through all keywords to execute the replacements.
foreach ($items as $item => $value) {
    if (count($value) > 0) {
        if (count($solution) > 0) {
            $solution = getReplacements($solution, $item, $value);
        } else {
            $solution = getReplacements($sentence, $item, $value);
        }
    }
}
//output the solutions.
array_walk_recursive($solution, 'output');
function output(&$item,$key) {
    echo $item."'n";
}
/**
 * Function to execute the replacements.
 * @param array|string $sentence An array or string on which the replacements should execute.
 * @param string $item The word which will be replaced.
 * @param array $values The replacement values for the item.
 * @return array An array with all solutions of this function.
 */
function getReplacements($sentence, $item, $values)
{
    $solutions = [];
    foreach ($values as $value) {
        $sol = str_replace($item, $value, $sentence);
        if (is_array($sol)) {
            $solutions = array_merge($solutions, $sol);
        } else {
            $solutions[] = $sol;
        }
    }
    return $solutions;
}

演示:https://ideone.com/X2Pg1R