我有一个数组如下所示
$fruit = array(' apple ','banana ', ' , ', ' cranberry ');
我想要一个数组，其中包含的值没有空白两侧，但它可以包含空值如何在php中做到这一点。输出数组应该是这样的
$fruit = array('apple','banana', ',', 'cranberry');
当前回答
如果数组是多维的，这将工作得很好:
//trims empty spaces in array elements (recursively trim multidimesional arrays)
function trimData($data){
if($data == null)
return null;
if(is_array($data)){
return array_map('trimData', $data);
}else return trim($data);
}
一个例子是这样的:
$arr=[" aaa ", " b ", "m ", [" .e ", " 12 3", "9 0 0 0 "]];
print_r(trimData($arr));
//RESULT
//Array ( [0] => aaa [1] => b [2] => m [3] => Array ( [0] => .e [1] => 12 3 [2] => 9 0 0 0 ) )
其他回答
function trim_value(&$value)
{
$value = trim($value);
}
// ut_sreco_dis Module
public function disExcelUpload($file=""){
ini_set('MAX_EXECUTION_TIME', -1);
ini_set('memory_limit', '-1');
$file_upload = $file;
if (isset($file_upload) && !empty($file_upload)){
//You can add directly the Composer Autoloder in your controller:
require FCPATH . 'vendor/autoload.php';
try{
$objPHPExcel = PHPExcel_IOFactory::load($file_upload);
}
catch (Exception $e){
die('Error loading file "' . pathinfo($file_upload, PATHINFO_BASENAME) . '": '.@$e->getMessage());
}
$allDataInSheet = $objPHPExcel->getActiveSheet()->toArray(null, true, true, true);
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestCol = $sheet->getHighestColumn();
$highestco = $sheet->getHighestDataColumn();
$arrayCount = count($allDataInSheet);
$now = date("Y-m-d H:i:s");
$flag = 0;
$check_template = array(
'A' => 'FIN_ID',
'B' => 'SECCODE',
'C' => 'SCHEME_NO',
'D' => 'SEC_SCH',
'E' => 'DISNO',
'F' => 'DISQTY',
'G' => 'BILLQTY',
'H' => 'BILLREF',
'I' => 'BILLDT',
);
$input_template = $allDataInSheet[1];
array_walk($input_template, $this->trim_value);
$result = array_diff($check_template, $input_template);
if(empty($result))
{
$this->srObject->truncTableDis();
# loop for inserting data
for ($i = 2,$j=0; $i <= $highestRow; $i++){
$db_ch_ot = 64;
$fin_id = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$sec_code = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$sch_no = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$sec_sch = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$dis_no = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$dis_qty = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$bill_qty = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$bill_ref = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
$bill_dt = trim($allDataInSheet[$i][chr(++$db_ch_ot)]);
if(empty($bill_dt)){
$bill_dt = null;
}else{
$dip_dt = date("Y-m-d",strtotime($bill_dt));
}
$dt = date('Y-m-d H:i:s');
$insert_data = array(
"fin_id_data" => $fin_id,
"sec_code_data" => $sec_code,
"sch_no_data" => $sch_no,
"sec_sch_data" => $sec_sch,
"dis_no_data" => $dis_no,
"dis_qty_data" => $dis_qty,
"bill_qty_data" => $bill_qty,
"bill_ref_data" => $bill_ref,
"bill_dt_data" => $bill_dt,
"created_at_data" => $dt,
"updated_at_data" => $dt,
);
if($this->srObject->insertSdisData($insert_data))
{
++$flag;
}
} //loop close
} else {
$this->session->set_flashdata('error', 'Error. Invalid Excel Template');
redirect(site_url('schill-bill-checking-suuti/sreco'));
}
$this->session->set_flashdata('success', 'File Uploaded Successfully ..'.' New Record Inserted : '.$flag);
redirect(site_url('schill-bill-checking-suuti/sreco'));
}
}
Multidimensional-proof解决方案:
array_walk_recursive($array, function(&$arrValue, $arrKey){ $arrValue = trim($arrValue);});
如果你不想丢失一个关联数组的元素，不要使用array_walk或array_map!
一个略短版本的foreach解决方案:
foreach($array as &$val)
$val = trim($val);
这适用于关联数组。
如果值为NULL，则在array_map中修改类型。
更好的做法是:
$result = array_map(function($v){
return is_string($v)?trim($v):$v;
}, $array);
function trimArray(&$value)
{
$value = trim($value);
}
$pmcArray = array('php ','mysql ', ' code ');
array_walk($pmcArray, 'trimArray');
通过使用array_walk函数，我们可以从数组元素中删除空格，元素返回相同数组中的结果。
