从数组转换值？ PHP

Question

I want to converting values from array before inserting in MySQL. I used the following code, but it only works for some cases (2_AAA, 2_AAA_1) bun not works for cases (2_AA_B, 2_AA_B_1, AA_AB).

$vars = array('val' => '2_AAA',
              'val' => '2_AAA_1',
              'val' => '2_AA_B',
              'val' => '2_AA_B_1',
              'val' => 'AA_AB');

foreach ($vars as $v):
    $vArr = explode('_', $v['val']);

    if (is_numeric($vArr[0]) && count($vArr[0])) {
        $vid = $vArr[0];
        $name = trim($vArr[1]);
        $name_real = $var;
    } else {
        $vid = 0;
        $name = $v['val'];
        $name_real = $v['val'];
    }

    echo "VID -->" . $vid . "
";
    echo "NAME -->" . $vArr[0] . "
";
    echo "NAME_REAL -->" . $name_real . "
";

endforeach;

From this array I want to get following result

//VID -->2
//NAME -->AAA
//NAME_REAL -->2_AAA

//VID -->2
//NAME -->AAA
//NAME_REAL -->2_AAA_1

//VID -->2
//NAME -->AA_B
//NAME_REAL -->2_AA_B

//VID -->2
//NAME -->AA_B
//NAME_REAL -->2_AA_B_1

//VID -->0
//NAME -->AA_AB
//NAME_REAL -->AA_AB

If can not prefix before name the VID is 0.

How can I make this ?

Thanks in advance !

Answer 1

How about this? The following code gives the output you seem to be expecting.

<?php

$vars = array(
    array( 'val' => '2_AAA' ),
    array( 'val' => '2_AAA_1' ),
    array( 'val' => '2_AA_B' ),
    array( 'val' => '2_AA_B_1' ),
    array( 'val' => 'AA_AB' )
);

foreach ($vars as $v) {
    $vArr = explode('_', $v['val']);

    if( is_numeric( $vArr[0] ) ) {
        $vid = $vArr[0];
        $name = $vArr[1];
        $name_real = $v['val'];
    }
    else {
        $vid = 0;
        $name = $v['val'];
        $name_real = $v['val'];
    }

    echo "VID --> $vid
";
    echo "NAME --> $name
";
    echo "NAME_REAL --> $name_real
";
    echo "
";

}