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anexar cadena de consulta a cualquier forma de URL

Question

Le pido al usuario que ingrese una URL en un cuadro de texto y necesito agregarle una cadena de consulta.

Los valores posibles de las URL pueden ser como:

1. http://www.example.com

2. http://www.example.com/a/

3. http://www.example.com/a/?q1=one

4. http://www.example.com/a.html

5. http://www.example.com/a.html?q1=one

Ahora necesito agregar una cadena de consulta como "q2 = dos", para que la salida sea como:

1. http://www.example.com/?q2=two

2. http://www.example.com/a/?q2=two

3. http://www.example.com/a/?q1=one&q2=two

4. http://www.example.com/a.html?q2=two

5. http://www.example.com/a.html?q1=one&q2=two

¿Cómo puedo lograr lo siguiente usando PHP?

Answer 1

$ url es tu URL. Usa la función de strpos

if(strpos($url,''?'') !== false) {
   $url .= ''&q2=two'';
} else {
   $url .= ''?q2=two'';
}

Answer 2

Esta es la función que uso:

/**
 * @param string $url
 * @param $query string|array
 * @return string
 */
public function appendQueryStringToURL(string $url, $query): string
{
    // the query is empty, return the original url straightaway
    if (empty($query)) {
        return $url;
    }

    $parsedUrl = parse_url($url);
    if (empty($parsedUrl[''path''])) {
        $url .= ''/'';
    }

    // if the query is array convert it to string
    $queryString = is_array($query) ? http_build_query($query) : $query;

    // check if there is already any query string in the URL
    if (empty($parsedUrl[''query''])) {
        // remove duplications
        parse_str($queryString, $queryStringArray);
        $url .= ''?'' . http_build_query($queryStringArray);
    } else {
        $queryString = $parsedUrl[''query''] . ''&'' . $queryString;

        // remove duplications
        parse_str($queryString, $queryStringArray);

        // place the updated query in the original query position
        $url = substr_replace($url, http_build_query($queryStringArray), strpos($url, $parsedUrl[''query'']), strlen($parsedUrl[''query'']));
    }

    return $url;
}

Acepta query como string o array . También maneja # en la URL y elimina las cadenas de consulta duplicadas automáticamente. Aquí está la prueba también. Reemplace CLASS_THAT_CONTAINS_appendQueryStringToURL con la class correcta en su proyecto:

public function testAppendQueryStringToURL()
{
    $helper = new CLASS_THAT_CONTAINS_appendQueryStringToURL();

    $inputsOutputs = [
        [
            ''i'' => ''http://www.example.com'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com'',
            ''q'' => ''q1=1&q2=2'',
            ''o'' => ''http://www.example.com/?q1=1&q2=2''
        ],
        [
            ''i'' => ''http://www.example.com/a/'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a/?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a.html'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a.html?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a/?q2=2'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a/?q2=2&q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a.html?q2=two'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a.html?q2=two&q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a.html?q1=1&q2=2'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a.html?q1=1&q2=2''
        ],
        // overwrite the existing
        [
            ''i'' => ''http://www.example.com/a.html?q1=1&q2=2'',
            ''q'' => ''q1=3'',
            ''o'' => ''http://www.example.com/a.html?q1=3&q2=2''
        ],
        [
            ''i'' => ''http://www.example.com/a/#something'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a/#something?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a/?q2=2#soe'',
            ''q'' => ''q1=1'',
            ''o'' => ''http://www.example.com/a/?q2=2&q1=1#soe''
        ],
        [
            ''i'' => ''http://www.example.com'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com'',
            ''q'' => [''q1'' => 1, ''q2'' => 2],
            ''o'' => ''http://www.example.com/?q1=1&q2=2''
        ],
        [
            ''i'' => ''http://www.example.com/a/'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a/?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a.html'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a.html?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a/?q2=2'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a/?q2=2&q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a.html?q2=two'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a.html?q2=two&q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a.html?q1=1&q2=2'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a.html?q1=1&q2=2''
        ],
        [
            ''i'' => ''http://www.example.com/a.html?q1=1&q2=2'',
            ''q'' => [''q1'' => 3],
            ''o'' => ''http://www.example.com/a.html?q1=3&q2=2''
        ],
        [
            ''i'' => ''http://www.example.com/a/#something'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a/#something?q1=1''
        ],
        [
            ''i'' => ''http://www.example.com/a/?q2=2#soe'',
            ''q'' => [''q1'' => 1],
            ''o'' => ''http://www.example.com/a/?q2=2&q1=1#soe''
        ],
    ];

    foreach ($inputsOutputs as $inputOutput) {
        $this->assertEquals($inputOutput[''o''], $helper->appendQueryStringToURL($inputOutput[''i''], $inputOutput[''q'']));
    }
}

Answer 3

Mejorando la respuesta de @ alex para tener en cuenta el apéndice infinito de la cadena de consulta

/* Append QueryString to current URL */
function querystring_append($query) {
    $url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
    $parsedUrl = parse_url($url);
    if ($parsedUrl[''path''] == null) {
        $url .= ''/'';
    }
    $separator = ($parsedUrl[''query''] == NULL) ? ''?'' : ''&'';
    if(!substr_count($url,$query)) $url .= $separator . $query;
    return $url;
}

Uso:

<?=querystring_append("action=logout") ?>

Answer 4

Sé que esto es antiguo, pero mejoré la respuesta de alex para explicar la parte "#" de la cadena.

$urls = array(
    ''http://www.example.com'',
    ''http://www.example.com/a/#something'',
    ''http://www.example.com/a/?q1=one#soe'',
    ''http://www.example.com/a.html'',
    ''http://www.example.com/a.html?q1=one''
    );

$query = ''q2=two'';

foreach($urls as &$url) {
    $pound = "";
    $poundPos = -1;

    //Is there a #?
    if ( ( $poundPos = strpos( $url, "#" ) ) !== false )
    {
        $pound = substr( $url, $poundPos );
        $url = substr( $url, 0, $poundPos );
    }

    $separator = (parse_url($url, PHP_URL_QUERY) == NULL) ? ''?'' : ''&'';
    $url .= $separator . $query . $pound;
}

var_dump($urls);

Answer 5

Si puede instalar pecl_http, esta es una solución realmente elegante. Puede permitirle verificar si está anulando una variable de obtención que pueden haber establecido.

$urlComps = parse_url($url);

// Get the current query string
$queryString = isset($urlComps[''query'']) ? $urlComps[''query''] : '''';

// Turn it into an array for easy manipulation
parse_str($queryString, $queryVars);

// Make changes to the query vars
$queryVars[''q2''] = ''two'';

// Empty paths return relative URLs.
$urlComps[''path''] = isset($urlComps[''path'']) ? $urlComps[''path''] : ''/'';

// Make the pecl_http call
$newURL = http_build_url($urlComps, array(''query'' => http_build_query($queryVars)));

Nota: si no puede instalar pecl_http, la única función que proviene es la última con la función http_build_url . Puede crear fácilmente su propia función para reconstruir la URL a partir de sus componentes ...

• parse_url
• parse_str
• http_build_query
• http_build_url * usa pecl_http

Answer 6

<?php

$urls = array(
         ''http://www.example.com'',
         ''http://www.example.com/a/'',
         ''http://www.example.com/a/?q1=one'',
         ''http://www.example.com/a.html'',
         ''http://www.example.com/a.html?q1=one''
        );

$query = ''q2=two'';

foreach($urls as &$url) {
   $parsedUrl = parse_url($url);
   if ($parsedUrl[''path''] == null) {
      $url .= ''/'';
   }
   $separator = ($parsedUrl[''query''] == NULL) ? ''?'' : ''&'';
   $url .= $separator . $query;
}

var_dump($urls);

Salida

array(5) {
  [0]=>
  string(29) "http://www.example.com/?q2=two"
  [1]=>
  string(32) "http://www.example.com/a/?q2=two"
  [2]=>
  string(39) "http://www.example.com/a/?q1=one&q2=two"
  [3]=>
  string(36) "http://www.example.com/a.html?q2=two"
  [4]=>
  &string(43) "http://www.example.com/a.html?q1=one&q2=two"
}

CodePad .