Php Tutorials: September 2023

26 September 2023

How to show shape file (.shp)(map) on map with shape file?

Show shape file (.shp)(map) on map with shape file

Include gasparesganga package in php code
https://gasparesganga.com/labs/php-shapefile/

<?php

// Register autoloader

require_once('vendor/gasparesganga/php-shapefile/src/Shapefile/ShapefileAutoloader.php');

Shapefile\ShapefileAutoloader::register();

// Import classes

use Shapefile\Shapefile;

use Shapefile\ShapefileException;

use Shapefile\ShapefileReader;

try {

// Open Shapefile

$Shapefile = new ShapefileReader('filepath/shapefile.shp');

// $json_data = $Shapefile->fetchRecord()->getGeoJSON();

$geoJsonArray = [];

while ($Geometry = $Shapefile->fetchRecord()) {

// Skip the record if marked as "deleted"

if ($Geometry->isDeleted()) {

continue;

}

// Print Geometry as an Array

/* print_r($Geometry->getArray());

// Print Geometry as WKT

print_r($Geometry->getWKT());

// Print Geometry as GeoJSON

print_r($Geometry->getGeoJSON());

// Print DBF data

print_r($Geometry->getDataArray()); */

$geoJsonArray[] = $Geometry->getGeoJSON();

}

} catch (ShapefileException $e) {

// Print detailed error information

echo "Error Type: " . $e->getErrorType()

. "\nMessage: " . $e->getMessage()

. "\nDetails: " . $e->getDetails();

}

$geoJsonArray = json_encode($geoJsonArray);

<!DOCTYPE html>

<head>

</head>

<body>

var map = L.map('map').setView([42.383, -93.305], 13); // Adjust the initial view

// Add a base layer (OpenStreetMap)

L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {

attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'

}).addTo(map);

// GeoJSON data

var geoJsonData = "<?php echo $geoJsonArray; ?>";

// Iterate through the array of GeoJSON strings and add them to the map

geoJsonData.forEach(function(geoJsonString) {

var geoJson = JSON.parse(geoJsonString);

L.geoJSON(geoJson).addTo(map);

});

</script>

</body>

</html>

20 September 2023

How to check date format in PHP?

Check date format in PHP

function isCorrectDateFromat($date){

if(!empty($date)){

$dateString = $date; // Replace this with your date string

$format = "Y-m-d"; // Replace this with your expected date format

$dateTime = DateTime::createFromFormat($format, $dateString);

if ($dateTime === false) {

/* echo "The date is not in the correct format."; */

} else {

$errors = DateTime::getLastErrors();

if (empty($errors)) {

/* echo "The date is in the correct format."; */

return true;

} else {

/* echo "The date is not in the correct format."; */

}

return false;

}

How to delete previous image on update new image or delete record in laravel?

Delete previous image on update new image or delete record in laravel

Laravel Model

public function getProfileImageAttribute($profile_image)

{

if(!empty($profile_image))

{

return $filepath = URL::to('/') . '/public/upload/' . $profile_image;

}

// Custom method to get the original unmodified URL

public function getOriginalProfileImageAttribute()

{

return $this->attributes['profile_image'];

}

function deleteProfileImage(){

$model = $this;

// Check if the avatar attribute is changing

if ($model->isDirty('profile_image')) {

// Delete the previous profile image if it exists

$previousFile = $model->getOriginal('original_profile_image');

if (!empty($previousFile) && Storage::disk('uploads')->exists($previousFile)) {

// Delete the file

Storage::disk('uploads')->delete($previousFile);

}

protected static function boot()

{

parent::boot();

static::updating(function ($model) {

$model->deleteProfileImage();

});

static::deleting(function ($model) {