Select multiple lines with PHP JSON

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Select multiple lines with PHP JSON

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#1 by (3 votes)
#2 by (0 votes)

0

I'm using SELECT to collect multiple rows from my database.

Using the query format below I have the expected result.

while ($this->result = $this->pQuery->fetch(PDO::FETCH_ASSOC)) {
    $this->json[] = $this->result;
}

result:

[
    {
        "evaluate_rq_id" : "10",
        "evaluate_rq_user_id" :"5", 
        "evaluate_rq_client" : "[email protected]",
        "evaluate_rq_comment" : "Por favor, nos avalie.", 
        "evaluate_rq_date" : "2014-12-27 22:21:23"
    },
    {
        "evaluate_rq_id" : "11",
        "evaluate_rq_user_id" : "5",
        "evaluate_rq_client" : "[email protected]",
        "evaluate_rq_comment" : "Por favor, nos avalie.",
        "evaluate_rq_date" : "2014-12-27 22:23:33"
    },
    { 
        "evaluate_rq_id" : "12", 
        "evaluate_rq_user_id" : "5", 
        "evaluate_rq_client" :"[email protected]",
        "evaluate_rq_comment" : "Por favor, nos avalie.",
        "evaluate_rq_date" : "2014-12-28 10:45:05"
    }

]

Using this format I have only 1 return line.

while($this->result = $this->pQuery->fetchAll(PDO::FETCH_ASSOC)) {
    foreach($this->result as $row) {
        $this->json['evaluate_rq_id']      = $row['evaluate_rq_id'];
        $this->json['evaluate_rq_user_id'] = $row['evaluate_rq_user_id'];
        $this->json['evaluate_rq_client']  = $row['evaluate_rq_client'];
        $this->json['evaluate_rq_comment'] = $row['evaluate_rq_comment'];
        $this->json['evaluate_rq_date']    = $row['evaluate_rq_date'];
    }   
}

result:

{
    "evaluate_rq_id": "12",
    "evaluate_rq_user_id": "5",
    "evaluate_rq_client": "[email protected]",
    "evaluate_rq_comment": "Por favor, nos avalie.",
    "evaluate_rq_date": "2014-12-28 10:45:05"
}

My idea of using the second format is to set the date field to the d-m-Y format before generating the result in JSON format, as below:

$this->json['evaluate_rq_date'] = date("d-m-Y",  strtotime($row['evaluate_rq_date']));

Any idea how to generate multiple lines using the second format?

php json

asked by anonymous 29.12.2014 / 13:24

2 answers

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score 3 · Answer 1

The second format also traverses all lines, however, only the last one appears because in every loop you are assigning new value to the variables.

Using this would already be enough to format the date as you want it and the content of $this->json will be all lines:

while($this->result = $this->pQuery->fetchAll(PDO::FETCH_ASSOC)) {
    $this->result['evaluate_rq_date'] = date("d-m-Y",  strtotime($row['evaluate_rq_date']));
    $this->json[] = $this->result;
}

score 0 · Answer 2

The second form is doing exactly what you want.

The problem is when extracting the data from the database, because you are extracting all at once rather than one by one.

Try the following change in the second method:

From:

while($this->result = $this->pQuery->fetchAll(PDO::FETCH_ASSOC)) {

To:

while($this->result = $this->pQuery->fetch(PDO::FETCH_ASSOC)) {

This way you will extract each line from the bank correctly.